ASIX AX88140A Fast Ethernet MAC Controller ASIX AX88140A 100BASE-TX/FX PCI Bus Fast Ethernet MAC Controller Data Sheet(11/03/'97) DOCUMENT NO. : AX140D2.DOC This data sheets contain new products information. ASIX ELECTRONICS reserves the rights to modify the products specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. ASIX ELECTRONICS CORPORATION 2F, NO.13, Industry East Rd. II, Science-based Industrial Park, Hsin-Chu City, Taiwan, R.O.C. TEL: 886-3-579-9500 FAX: 886-3-579-9558 AX88140A PRELIMINARY CONTENTS 1.0 INTRODUCTION ................................................................................................................................................ 6 1.1 GENERAL DESCRIPTION: ...................................................................................................................................... 6 1.2 FEATURES ............................................................................................................................................................ 7 1.3 BLOCK DIAGRAM: ............................................................................................................................................... 8 1.4 AX88140AQ PIN CONNECTION DIAGRAM FOR 160-PIN ...................................................................................... 9 1.5 AX88140AP PIN CONNECTION DIAGRAM FOR 144-PIN .................................................................................... 10 2.0 SIGNAL DESCRIPTION .................................................................................................................................. 11 2.1 SIGNAL DESCRIPTIONS FOR 160-PIN AND 144-PIN.............................................................................................. 11 2.2 PCI INTERFACE GROUP ...................................................................................................................................... 12 2.3 BOOT ROM , SERIAL ROM , GENERAL-PURPOSE SIGNALS GROUP .................................................................... 14 2.4 MII/SYM/SRL INTERFACE SIGNALS GROUP ...................................................................................................... 14 2.5 EXTENDED , NC, POWER PINS GROUP ................................................................................................................ 16 3.0 CONFIGURATION OPERATION .................................................................................................................. 17 3.1 CONFIGURATION SPACE MAPPING ..................................................................................................................... 17 3.2 CONFIGURATION SPACE ..................................................................................................................................... 18 3.2.1 Configuration ID Register (CSID)............................................................................................................ 18 3.2.2 Command and Status Configuration Register (CSCS)............................................................................... 18 3.2.3 Configuration Revision Register (CSRV).................................................................................................. 18 3.2.4 Configuration Latency Timer Register (CSLT)......................................................................................... 18 3.2.5 Configuration Base I/O Address Register (CBIO).................................................................................... 19 3.2.6 Configuration Base Memory Address Register (CBMA) .......................................................................... 19 3.2.7 Expansion ROM Base Address Register (CBER)...................................................................................... 19 3.2.8 Configuration Interrupt Register (CSIT) .................................................................................................. 19 4.0 REGISTERS OPERATION .............................................................................................................................. 20 4.1 REGISTERS MAPPING ......................................................................................................................................... 20 4.2 HOST REGS ....................................................................................................................................................... 21 4.2.1 Bus Mode Register (REG0)........................................................................................................................ 21 4.2.2 Transmit Poll Demand (REG1)................................................................................................................. 21 4.2.3 Receive Poll Demand (REG2)................................................................................................................... 22 4.2.4 Receive List Base Address (REG3) ........................................................................................................... 22 4.2.5 Transmit List Base Address (REG4) ......................................................................................................... 22 4.2.6 Status Register (REG5) ............................................................................................................................. 23 4.2.7 Operation Mode Register (REG6) ............................................................................................................ 24 4.2.8 Interrupt Enable Register (REG7) ............................................................................................................ 26 4.2.9 Missed Frame and Overflow Counter (REG8) ........................................................................................ 26 4.2.10 Serial ROM and MII Management Register (REG9).............................................................................. 27 4.2.11 General-Purpose Timer (REG11)........................................................................................................... 27 4.2.12 General-Purpose Port Register (REG12) ............................................................................................... 28 4.2.13 Filtering Index (REG13) ......................................................................................................................... 28 4.2.14 Filtering data (REG14)........................................................................................................................... 28 5.0 HOST COMMUNICATION.............................................................................................................................. 30 5.1 DESCRIPTOR LISTS AND DATA BUFFERS ............................................................................................................ 30 5.2 RECEIVE DESCRIPTORS ...................................................................................................................................... 31 5.2.1 Receive Descriptor 0 (RDES0) .................................................................................................................. 31 5.2.2 Receive Descriptor 1 (RDES1) .................................................................................................................. 32 5.2.3 Receive Descriptor 2 (RDES2) .................................................................................................................. 32 5.2.4 Receive Descriptor 3 (RDES3) .................................................................................................................. 32 5.3 TRANSMIT DESCRIPTORS ................................................................................................................................... 33 5.3.1 Transmit Descriptor 0 (TDES0)................................................................................................................. 33 5.3.2 Transmit Descriptor 1 (TDES1)................................................................................................................. 34 5.3.3 Transmit Descriptor 2 (TDES2)................................................................................................................. 34 5.3.4 Transmit Descriptor 3 (TDES3)................................................................................................................. 34 2 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 6.0 ELECTRICAL SPECIFICATION AND TIMINGS ...................................................................................... 35 6.1 ABSOLUTE MAXIMUM RATINGS ........................................................................................................................ 35 6.2 GENERAL OPERATION CONDITIONS ................................................................................................................... 35 6.3 DC CHARACTERISTICS ...................................................................................................................................... 35 6.4 A.C. TIMING CHARACTERISTICS ........................................................................................................................ 36 6.4.1 PCI CLOCK .............................................................................................................................................. 36 6.4.2 PCI Timings ............................................................................................................................................... 36 6.4.3 Reset Timing .............................................................................................................................................. 36 6.4.4 MII/SYM Timing ........................................................................................................................................ 37 6.4.5 10Mbps serial timing ................................................................................................................................. 38 6.4.6 Boot ROM Read Cycles ............................................................................................................................. 39 7.0 PACKAGE INFORMATION............................................................................................................................ 40 APPENDIX A H/W NOTE .................................................................................................................................... 41 A.1 BOOT ROM READ CYCLE .................................................................................................................................. 41 A.2 POWER SUPPLY ................................................................................................................................................. 42 A.3 BOUNDARY SCAN TEST PINS ............................................................................................................................ 42 APPENDIX B FUNCTION APPLICATION ...................................................................................................... 43 B.1 APPLICATION FOR PCI INTERFACE .................................................................................................................... 43 B.2 APPLICATION FOR BOOT ROM INTERFACE ....................................................................................................... 44 B.3 APPLICATION FOR SERIAL ROM INTERFACE..................................................................................................... 44 B.4 APPLICATION FOR PHY INTERFACE .................................................................................................................. 45 B.4.1 AX88140A, QSI6611, & MTD213 Application ......................................................................................... 45 B.4.2 Application for MII Mode : LEVEL ONE LXT970.................................................................................... 45 B.4.3 Application for MII Mode : MYSON MTD972 + MTD971....................................................................... 46 B.4.4 Application for MII Mode : DAVICOM DM9101 ..................................................................................... 46 3 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY FIGURES FIG - 1 AX88140A BLOCK DIAGRAM ........................................................................................................................... 8 FIG - 2 AX88140AQ PIN CONNECTION DIAGRAM FOR 160-PIN ..................................................................................... 9 FIG - 3 AX88140AP PIN CONNECTION DIAGRAM FOR 144-PIN .................................................................................... 10 FIG - 4 DESCRIPTOR STRUCTURE EXAMPLE ................................................................................................................. 30 FIG - 5 RECEIVE DESCRIPTOR FORMAT........................................................................................................................ 31 FIG - 6 TRANSMIT DESCRIPTOR FORMAT ..................................................................................................................... 33 FIG - 7 APPLICATION FOR PCS / SERIAL MODE ........................................................................................................... 45 FIG - 8 APPLICATION FOR MII MODE WITH LXT970................................................................................................... 45 FIG - 9 APPLICATION FOR MII MODE WITH MDT972 + MTD971............................................................................... 46 FIG - 10 APPLICATION FOR MII MODE WITH DM9101 ................................................................................................ 46 4 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY TABLES TAB - 1 PCI INTERFACE GROUP ................................................................................................................................... 13 TAB - 2 BOOT ROM , SERIAL ROM , GENERAL-PURPOSE SIGNALS GROUP ................................................................. 14 TAB - 3 MII/SYM/SRL INTERFACE SIGNALS GROUP ................................................................................................... 15 TAB - 4 EXTENDED , NC, POWER PINS GROUP ............................................................................................................. 16 TAB - 5 CONFIGURATION SPACE MAPPING .................................................................................................................. 17 TAB - 6 CSID CONFIGURATION ID REGISTER DESCRIPTION ....................................................................................... 18 TAB - 7 CSCS COMMAND AND STATUS CONFIGURATION REGISTER ........................................................................... 18 TAB - 8 CSRV CONFIGURATION REVISION REGISTER DESCRIPTION ........................................................................... 18 TAB - 9 CSLT CONFIGURATION ID REGISTER DESCRIPTION ...................................................................................... 18 TAB - 10 CBIO CONFIGURATION BASE I/O ADDRESS REGISTER DESCRIPTION .......................................................... 19 TAB - 11 CBMA CONFIGURATION BASE MEMORY ADDRESS REGISTER DESCRIPTION ............................................... 19 TAB - 12 CBER EXPANSION ROM BASE ADDRESS REGISTER DESCRIPTION .............................................................. 19 TAB - 13 CSIT CONFIGURATION INTERRUPT REGISTER DESCRIPTION ........................................................................ 19 TAB - 14 COMMAND AND STATUS REGISTER MAPPING ............................................................................................... 20 TAB - 15 REG0 BUS MODE REGISTER DESCRIPTION................................................................................................... 21 TAB - 16 REG1 TRANSMIT POLL DEMAND REGISTER DESCRIPTION ........................................................................... 21 TAB - 17 REG2 RECEIVE POLL DEMAND REGISTER DESCRIPTION .............................................................................. 22 TAB - 18 REG3 RECEIVE LIST BASE ADDRESS REGISTER DESCRIPTION ..................................................................... 22 TAB - 19 REG4 TRANSMIT LIST BASE ADDRESS REGISTER DESCRIPTION .................................................................. 22 TAB - 20 REG5 STATUS REGISTER DESCRIPTION........................................................................................................ 24 TAB - 21 REG6 OPERATION MODE REGISTER DESCRIPTION ....................................................................................... 25 TAB - 22 PORT AND DATA RATE SELECTION ............................................................................................................... 25 TAB - 23 REG7 INTERRUPT ENABLE REGISTER DESCRIPTION..................................................................................... 26 TAB - 24 REG8 MISSED FRAME AND OVERFLOW COUNTER DESCRIPTION ................................................................. 26 TAB - 25 REG9 SERIAL ROM, AND MII MANAGEMENT REGISTER DESCRIPTION ..................................................... 27 TAB - 26 REG11 GENERAL-PURPOSE TIMER REGISTER DESCRIPTION ........................................................................ 28 TAB - 27 REG12 GENERAL-PURPOSE PORT REGISTER DESCRIPTION.......................................................................... 28 TAB - 28 REG13 FILTERING INDEX REGISTER DESCRIPTION ...................................................................................... 28 TAB - 29 REG14 FILTERING DATA REGISTER DESCRIPTION ....................................................................................... 28 TAB - 30 DESCRIPTION OF FILTERING BUFFER ............................................................................................................ 28 TAB - 31 LAYOUT OF FILTERING BUFFER .................................................................................................................... 29 TAB - 32 RECEIVE DESCRIPTOR 0 ................................................................................................................................ 32 TAB - 33 RECEIVE DESCRIPTOR 1 ................................................................................................................................ 32 TAB - 34 RECEIVE DESCRIPTOR 2 ................................................................................................................................ 32 TAB - 35 RECEIVE DESCRIPTOR 3 ................................................................................................................................ 32 TAB - 36 TRANSMIT DESCRIPTOR 0 ............................................................................................................................. 34 TAB - 37 TRANSMIT DESCRIPTOR 1 ............................................................................................................................. 34 TAB - 38 TRANSMIT DESCRIPTOR 2 ............................................................................................................................. 34 TAB - 39 TRANSMIT DESCRIPTOR 3 ............................................................................................................................. 34 5 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 1.0 Introduction 1.1 General Description: l The AX88140A Fast Ethernet Controller is a high performance and highly integrated PCI Bus Ethernet Controller chip. l The AX88140A is cost effective, high performance solution for PCI add-in adapters, PC motherboards, or bridge/hub applications. l It implements both 10Mbps and 100Mbps Ethernet function based on IEEE802.3 LAN standard. l The AX88140A contains a high speed 32 bit PCI Bus master interface to host CPU. Two large independent transmit and receive FIFO allow the AX88140A to buffer the Ethernet packet efficiently. l The 10/100Mbps ports can be programmed to support 10Mbps, 100Mbps media-independent interface (MII), or 100BASE-TX physical coding sub-layer (PCS)mode, For 10Mbps operation AX88140A provides a standard serial Interface to the external 10Mbps ENDEC chip. 6 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 1.2 Features l l l l l l l l l l l l l l l l l l l l Single chip PCI bus Fast Ethernet Controller. Direct interface to PCI bus. Support both 10Mbps and 100Mbps data rate. Full or Half duplex operation supported for both10Mbps and 100Mbps operation. Provides a MII port for both 10/100Mbps operation. On chip PCS support for 100BASE-TX symbol mode operation. On chip external 10Mbps ENDEC Interface. Support 21MHz to 33MHz no wait state PCI Bus Interface. Two large Independent FIFO for transmit and receive. no additional On board buffer memory required. Interface to serial ROM for Ethernet ID address and jumper-less board design. 256KB boot ROM support. On chip general purpose, programmable register and I/O pins. Unlimited PCI burst. external and internal loop-back capability. Support early interrupts on transmit. Powerful on chip buffer management DMA. And PCI Bus master operation reduce CPU utilization. Big and little endian byte ordering supported. IEEE 802.3u 100BASE-T, TX, and T4 Compatible. 160 pin or 144 pin PQFP package. 5V CMOS process. 7 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 1.3 Block Diagram: SERIAL ROOM BOOT ROM Interface Serial ROM I/F BOOT ROM I/F Receive FIFO PCI BUS PCI BUS MII Interface MII PCS Interface SYM MAC Buffer Management DMA Engine Controller Interface 10 BT Interface Transmit FIFO SRL General Purpose REG General purpose I/O pins Fig - 1 AX88140A Block Diagram 8 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 1.4 AX88140AQ Pin Connection Diagram for 160-pin 160 159 158 157 156 155 154 153 152 151 150 149 148 147 146 145 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 nc nc nc nc nc nc srl_txen srl_tclk srl_txd srl_rclk srl_rxen srl_rxd srl_clsn mii/srl symtxd<4> mtxd<3>/symtxd<3> mtxd<2>/symtxd<2> vdd vss mtxd<1>/symtxd<1> mtxd<0>/symtxd<0> mtxen/symtxen nc mtclk/symtclk rcv_match vdd vss symrxd<4> mrxd<3>/symrxd<3> mrxd<2>/symrxd<2> mrxd<1>/symrxd<1> mrxd<0>/symrxd<0> mrclk/symrclk mcrs mcol mrxdv mrxerr sd nc nc The AX88140A is housed in the 160-pin plastic quad flat pack. Fig - 2 shows the AX88140A pin connection diagram. 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 ASIX 88140AQ nc nc vss vdd mdc mdio nc br_a<1> br_a<0> brce# br_ad<7> br_ad<6> vdd vss br_ad<5> br_ad<4> br_ad<3> br_ad<2> br_ad<1> br_ad<0> vss genp<7> genp<6> genp<5> genp<4> vdd vss genp<3> genp<2> genp<1> genp<0> sr_cs sr_ck sr_di sr_do vdd vss vdd* nc nc 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 nc nc vss cbe#<2> frame# irdy# trdy# devsel# stop# vdd perr# serr# par cbe#<1> vss ad<15> ad<14> ad<13> vss ad<12> ad<11> vdd ad<10> ad<09> vss ad<08> cbe#<0> ad<07> ad<06> vss ad<05> ad<04> vdd ad<03> ad<02> vss ad<01> ad<00> nc nc nc nc int# rst# vdd vss pci_clk vdd gnt# req# vss ad<31> ad<30> vss ad<29> ad<28> vss ad<27> ad<26> vdd ad<25> ad<24> c_be#<3> idsel vss ad<23> ad<22> ad<21> ad<20> vdd ad<19> ad<18> vdd vss vss ad<17> ad<16> vss nc nc Fig - 2 AX88140AQ Pin connection diagram for 160-pin 9 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 1.5 AX88140AP Pin Connection Diagram for 144-pin 144 143 142 141 140 139 138 137 136 135 134 133 132 131 130 129 128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 nc nc nc nc srl_txen srl_tclk srl_txd srl_rclk srl_rxen srl_rxd srl_clsn mii/srl symtxd<4> mtxd<3>/symtxd<3> mtxd<2>/symtxd<2> vdd vss mtxd<1>/symtxd<1> mtxd<0>/symtxd<0> mtxen/symtxen nc mtclk/symtclk rcv_match vdd vss symrxd<4> mrxd<3>/symrxd<3> mrxd<2>/symrxd<2> mrxd<1>/symrxd<1> mrxd<0>/symrxd<0> mrclk/symrclk mii_crs mcol mrxdv mrxerr sd The AX88140A is housed in the 144-pin plastic quad flat pack. Fig - 3 shows the AX88140A pin connection diagram. 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 75 74 73 ASIX 88140AP vss vdd mdc mdio nc br_a<1> br_a<0> brce# br_ad<7> br_ad<6> vdd vss br_ad<5> br_ad<4> br_ad<3> br_ad<2> br_ad<1> br_ad<0> vss genp<7> genp<6> genp<5> genp<4> genp<5> vdd vss genp<3> genp<2> genp<1> genp<0> sr_cs sr_ck sr_di sr_do vdd vss vdd* 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 vss cbe#<2> frame# irdy# trdy# devsel# stop# vdd perr# serr# par cbe#<1> vss ad<15> ad<14> ad<13> vss ad<12> ad<11> vdd ad<10> ad<09> vss ad<08> cbe#<0> ad<07> ad<06> vss ad<05> ad<04> vdd ad<03> ad<02> vss ad<01> ad<00> int# rst# vdd vss pci_clk vdd gnt# req# vss ad<31> ad<30> vss ad<29> ad<28> vss ad<27> ad<26> vdd ad<25> ad<24> cbe#<3> idsel vss ad<23> ad<22> ad<21> ad<20> vdd ad<19> ad<18> vdd vss vss ad<17> ad<16> vss Fig - 3 AX88140AP Pin connection diagram for 144-pin 10 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 2.0 Signal Description 2.1 Signal Descriptions for 160-pin and 144-pin The following terms describe the AX88140A pin-out: Address phase Address and appropriate bus commands are driven during this cycle. l Data phase Data and the appropriate byte enable codes are driven during this cycle. l # All pin names with the # suffix are asserted low. l The following abbreviations are used in Tab - 1 PCI interface group Tab - 2 Boot ROM , Serial ROM , Generalpurpose signals group ,Tab - 3 MII/SYM/SRL interface signals group ,Tab - 4 Extended , NC, Power pins group.. I O I/O O/D Input Output Input /Output Open Drain 11 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 2.2 PCI interface group SIGNAL TYPE PIN PIN NUMBER NUMBER FOR 160 PIN FOR 144 PIN 12, 13, 15, 16, 18, 19, 21, 22, 26, 27, 28, 29, 31, 32, 36, 37, 56, 57, 58, 60, 61, 63, 64, 66, 68, 69, 71, 72, 74, 75, 77, 78 23, 44, 54, 67 10, 11, 13, 14, 16, 17, 19, 20, 24, 25, 26, 27, 29, 30, 34, 35, 50, 51, 52, 54, 55, 57, 58, 60, 62, 63, 65, 66, 68, 69, 71, 72 21, 38, 48, 61 I/O 48 42 I/O 45 39 GNT# I 9 7 IDSEL I 24 22 INT# O/D 3 1 IRDY# I/O 46 40 AD<31> AD<30> AD<29> AD<28> AD<27> AD<26> AD<25> AD<24> AD<23> AD<22> AD<21> AD<20> AD<19> AD<18> AD<17> AD<16> AD<15> AD<14> AD<13> AD<12> AD<11> AD<10> AD<9> AD<8> AD<7> AD<6> AD<5> AD<4> AD<3> AD<2> AD<1> AD<0> CBE#<3> CBE#<2> CBE#<1> CBE#<0> I/O DEVSEL# FRAME# I/O DESCRIPTION Address and data bits are multiplexed on the same pins. During the address phase, the AD<31:0> contain a physical address (32 bits). During, data phases, AD<31:0> contain 32 bits of data. The AX88140A supports both read and write bursts (in master operation only). Little and big endian byte ordering can be used. BUS COMMAND and BYTE ENABLE Are multiplexed on the same PCI pins. During the address phase of the transaction, CBE#<3:0> Provide the BUS COMMAND. During the data phase, CBE#<3:0> Provide the BYTE ENABLE. The BYTE ENABLE determines which byte lines carry valid data., CBE#<0> Applies to byte 0, and CBE#<3> Applies to byte 3. Device select Is asserted by the target of the current bus access. When the AX88140A is the master of the current bus access, the target assert DEVSEL# confirming the access. It is driven by AX88140A When AX88140A is selected as a slave. The FRAME# Signal is driven by the AX88140A To indicate the beginning and duration of an access. FRAME# Asserts to indicate the beginning of a bus transaction. While FRAME# is asserted, data transfers continue. When FRAME# deasserts the next data phase is the final data phase transaction. BUS GRANT Indicates to the AX88140A That access to the bus is granted. Initialization devise select asserts To indicate that the host is issuing a configuration cycle to the AX88140A. Interrupt request asserts When one of the appropriate bits of reg5 sets and causes an interrupt, provided that the corresponding mask bit in reg7 is not asserted. interrupt request deasserts by writing a 1 into the appropriate crs5 bit. This pin must be pulled up by an external resistor. Initiator ready Indicates the bus master ability to complete the current data phase of the transaction. A data phase is completed on any rising edge of the clock When both IRDY# and target ready TRDY# are asserted. Wait cycles are inserted until both IRDY# and TRDY# are asserted together. When the AX88140A is the bus master, IRDY# is asserted during write operations to indicate that valid data is present on the AD<31:0>. During read operations, the AX88140A asserts 12 ASIX ELECTRONICS CORPORATION AX88140A PAR PRELIMINARY I/O 53 47 I 7 5 PERR# I/O 51 45 REQ# O 10 8 RST# I 4 2 SERR# I/O 52 46 STOP# I/O 49 43 TRDY# I/O 47 41 PCI_CLK IRDY# to indicate that it is ready to accept data. Parity is an even parity bit for the AD<31:0> AD and CBE#<3:0>. During address and data phases, parity is calculated on all the AD<31:0> AND CBE#<3:0>lines whether or not any of these lines carry meaningful information. The clock provides the timing for the AX88140A related PCI bus transactions. All the bus signals are sampled on the rising edge of PCI_CLK. The clock frequency range is between 21MHZ and 33MHZ. Parity error asserts when a data parity error is detected. When the AX88140A is the bus master it monitor PERR# to see if the target report a data parity error., when the AX88140A is the bus target and a parity error is detected, the AX88140A asserts PERR#. This pin must be pulled up by an external resistor. Bus request is asserted by the AX88140A to indicate to the bus arbiter that it wants to use the bus. Resets the AX88140A to its initial state. This signal must be asserted for at least 10 active PCI clock cycles. When is the reset state, all PCI output pins are put into tri-state and all PCI o/d signals are floated. System Error is used by AX88140A to report address parity Error. This pin must be pulled up by an external resistor. Stop indicator indicates that the current target is requesting the bus master to stop the current transaction. The AX88140A responds to the assertion of STOP# when it is the bus master, and stop the current transaction. Target ready indicates the target ability to complete the current data phase of the transaction. A data phase is completed on any clock when both TRDY# and IRDY# are asserted. Wait cycles are inserted until both IRDY# and TRDY# are asserted together. When the AX88140A is the bus master, target ready is asserted by the bus slave on the read operation, indicating that valid data is present on the ad lines. During a write cycle, it indicates that the target is prepared to accept data. Tab - 1 PCI interface group 13 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 2.3 Boot ROM , Serial ROM , General-purpose signals group SIGNAL BR_A<0> BR_A<1> BR_AD<7> BR_AD<6> BR_AD<5> BR_AD<4> BR_AD<3> BR_AD<2> BR_AD<1> BR_AD<0> BR_CE# SR_CK SR_CS SR_DI SR_DO GENP<7> GENP<6> GENP<5> GENP<4> GENP<3> GENP<2> GENP<1> GENP<0> TYPE PIN PIN NUMBER NUMBER FOR 160 PIN FOR 144 PIN 0 0 112 113 102 103 I/O 110, 109, 106, 105, 104, 103, 102, 101 111 88 89 87 86 99, 98, 97, 96, 93, 92, 91, 90 100, 99, 96, 95, 94, 93, 92, 91 101 78 79 77 76 89, 88, 87, 86, 83, 82, 81, 80 O O O O I I/O DESCRIPTION Boot ROM address line bit 0. Boot ROM address line bit 1. This pin also latches the boot ROM address and control lines by the two external latches. Boot ROM address and data multiplexed lines bits 7 through 0. In the first of two consecutive address cycles, these lines contain the boot ROM address bits 9 through 2; followed by boot ROM address bits 17 through 10 in the second cycle. During the data cycle, bits 7 through 0 contain data. Boot ROM chip enable. Serial ROM clock signal. Serial ROM chip-select signal. Serial ROM data-in signal. Serial ROM data-out signal. General-purpose pins can be used by software as either status pins or control pins. These pins can be configured by software to perform either input or output functions. Tab - 2 Boot ROM , Serial ROM , General-purpose signals group 2.4 MII/SYM/SRL interface signals group SIGNAL TYPE PIN PIN NUMBER NUMBER FOR 160 PIN FOR 144 PIN MCOL I 126 112 MCRS I 127 113 MRXDV I 125 111 MRXERR I 124 110 MDC O 116 106 MDIO I/O 115 105 O 147 133 MII/SRL DESCRIPTION Collision detected is asserted when detected by an external physical layer protocol(PHY) device. Carrier sense is asserted by the PHY when the media is active. Data valid is asserted by an external PHY when receive data is present on the MRXD/SYRXD lines and is deasserted at the end of the packet. This signal should be synchronized with the MRCLK/SYMRCLK signal. Receive error asserts when a data decoding error is detected by an external PHY device. This signal is synchronized to MRCLK/SYMRCLK and can be asserted for a minimum of one receive clock. When asserted during a packet reception, it sets the cyclic redundancy check(CRC) error bit in the receive descriptor (RDESO). MII management data clock is sourced by the AX88140A to the PHY devices as a timing reference for the transfer of information on the MII_MDIO signal. MII management data input/output transfers control information and status between the PHY and the AX88140A. Indicates the selected port: SRL or MII/SYM. When asserted, the MII/SYM port is active. When deasserted, the SRL port is active. 14 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY MRCLK/SYMRCLK I 128 114 MRXD<3>/SYMRXD<3> MRXD<2>/SYMRXD<2> MRXD<1>/SYMRXD<1> MRXD<0>/SYMRXD<0> MTCLK/SYMTCLK I 132, 131, 130, 129 137 118, 117, 116, 115 123 I MTXD<3>/SYMTXD<3> MTXD<2>/SYMTXD<2> MTXD<1>/SYMTXD<1> MTXD<0>/SYMTXD<0> O 145, 144, 141, 140 131, 130, 127, 126 MTXEN/SYMTXEN O 139 125 RCV_MATCH O 136 122 SD I 123 109 SRL_CLSN I 148 134 SRL_RCLK I 151 137 SRL_RXD I 149 135 SRL_RXEN I 150 136 SRL_TCLK I 153 139 SRL_TXD O 152 138 SRL_TXEN O 154 140 SYMRXD <4> I 133 119 SYMTXD<4> O 146 132 Supports either the 25-MHZ or 2.5-MHZ receive clock. This clock is recovered by the PHY. Four parallel receive data lines When MII mode is selected. This data is driven by an external PHY that attached the media and should be synchronized with the MRCLK/SYMRCLK signal. Supports the 25-MHZ or 2.5-MHZ transmit clock supplied by the external physical layer medium dependent (PMD) device. This clock should always be active. Four parallel transmit data lines. This data is synchronized to the assertion of the MTCLK/SYMTCLK signal and is latched by the external PHY on the rising edge of the MTCLK/SYMTCLK signal. Transmit enable signals that the transmit is active to an external PHY device. In PCS mode (REG6<23>), This signal reflects the transmit activity of the MAC sub-layer. Receive match indication is asserted when a received packet has passed address recognition. Receive match indication is asserted when a received packet has passed address recognition. Signal detect indication supplied by an external physical layer medium dependent (PMD) device. Collision detect signals a collision occurrence on the Ethernet cable to the AX88140A. It may be asserted and deasserted asynchronously by the external ENDEC to the receive clock. Receive clock carries the recovered receive clock supplied by an external ENDEC. during idle periods, SRL_RCLK may be inactive. Receive data carries the input receive data from the external ENDEC. The incoming data should be synchronous with the SRL_RCLK signal. Receive enable signals activity on the Ethernet cable to the AX88140A. It is asserted when receive data is present on the Ethernet cable and is deasserted at the end of a frame. It may be asserted and deasserted asynchronously to the receive clock (SRL_RCLK) by the external ENDEC. Transmit clock carries the transmit clock supplied by an external ENDEC. This clock must always be active (even during reset). Transmit data carries the serial output data from the AX88140A. This data is synchronized to the SRL_TCLK signal. Transmit enable signals an external ENDEC That the AX88140A transmit is in progress. Receive data, together with the four receive lines MII/SYM_RXD<3:0>, Provide five parallel lines of data in symbol from for use in PCS mode (100BASE-T, REG6<23). This data is synchronized on the rising edge of the MTCLK/SYMTCLK signal. Transmit data, together with the our transmit lines MII/SYM_TXD<3:0>,provide five parallel lines of data in symbol form for use in PCS mode (100BASE-T, REG6<23>). This data is synchronized on the rising edge of the MII/SYM_TCLK signal. Tab - 3 MII/SYM/SRL interface signals group 15 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 2.5 Extended , NC, Power pins group SIGNAL TYPE EC<15:0> O NC O VDD P VDD* VSS P P PIN PIN NUMBER NUMBER FOR 160 PIN FOR 144 PIN 160,159,122, 121,120,119, 82,81,80,79,42,41 ,40,39,2,1 114,138,155,156, 157,158 5,8,20,30,33, 50,62,73,85, 95,108,117, 135,143 83 6,11,14,17,25, 34,35,38,43, 55,59,65,70, 76,84,94,100, 107,118,134, 142 DESCRIPTION NONE Expended pins. do not connect. 104,124,141,142, 143,144 3,6,18,28,31, 44,56,67,75, 85,98,107, 121,129 73 4,9,12,15,23, 32,33,36,37, 49,53,59,64, 70,74,84,90,97,10 8,120,128 No connection. 5-V supply input voltage. 5.0-V reference for 5.0-V signaling environments Ground pins. Tab - 4 Extended , NC, Power pins group 16 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 3.0 Configuration Operation 1. Software reset (REG0<0>) has no effect on the configuration registers. 2. Hardware reset puts the configuration registers in default values. 3. The configuration registers could be accessed in byte, word , and long-word. 3.1 Configuration Space Mapping CONFIGURATION REGISTER DEVICE/VENDOR ID COMMAND AND STATUS REVISION LATENCY TIMER BASE I/O ADDRESS BASE MEMORY ADDRESS RESERVED SUBSYSTEM ID EXPANSION ROM BASE ADDRESS RESERVED INTERRUPT Special Use IDENTIFIER I/O ADDRESS OFFSET CSID CSCS CSRV CSLT CBIO CBMA CBER CSIT SUD 00H 04H 08H 0CH 10H 14H 18H-28H 2CH 30H 34H - 38H 3CH 40H Tab - 5 Configuration Space Mapping 17 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 3.2 Configuration Space 3.2.1 Configuration ID Register (CSID) FIELD R/W 31:16 R 15:0 R DESCRIPTION Device ID : Provides the unique AX88140A ID number (1400H) Vender ID : Provides the manufacturer of the AX88140A (125BH) Tab - 6 CSID Configuration ID Register Description 3.2.2 Command and Status Configuration Register (CSCS) FIELD R/W TYPE 31 30 29 28 26:25 24 23 22:9 8 6 2 1 0 R R R R R R R R/W R/W R/W R/W R/W STATUS STATUS STATUS STATUS STATUS STATUS STATUS RESERVED COMMAND COMMAND COMMAND COMMAND COMMAND DESCRIPTION Detected Parity Error : active high Signal System Error : active high Received Master Abort : active high Received Target Abort : active high Device Select Timing : fixed at 01 which indicates a medium assertion of DEVSEL# Data Parity Report : active high Fast Back-to-Back : always set System Error Enable : active high Parity Error Response : active high Master Operation : active high Memory Space Access : active high I/O Space Access : Active high Tab - 7 CSCS Command and Status Configuration Register 3.2.3 Configuration Revision Register (CSRV) FIELD R/W 31:24 23:16 7:4 3:0 R R R R DESCRIPTION Base Class : Always equal to 2H that indicates the network controller Subclass : Always equal to 0H that indicates the fast Ethernet controller Revision Number : Indicates the AX88140A revision number and is equal to 0H Step Number : Indicates the AX88140A step number and is referred to current silicon step. Tab - 8 CSRV Configuration Revision Register Description 3.2.4 Configuration Latency Timer Register (CSLT) FIELD R/W 31:16 15:8 7:0 R/W R/W R/W DESCRIPTION Reserved Configuration Latency Timer. The value after hardware reset equal to 0h. Reserved Tab - 9 CSLT Configuration ID Register Description 18 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 3.2.5 Configuration Base I/O Address Register (CBIO) FIELD R/W 31:7 6:1 0 R/W R R DESCRIPTION Configuration Base I/O Address : Defines the address assignment mapping of AX88140A`s regs. This field value is 0 when read I/O Space Indicator : Determines that the register maps into the I/O space. The value in this field is 1. Tab - 10 CBIO Configuration Base I/O Address Register Description 3.2.6 Configuration Base Memory Address Register (CBMA) FIELD 31:7 6:1 0 R/W R/W R R DESCRIPTION Configuration Base Memory Address : Defines the address assignment mapping of AX88140A`s regs. This field value is 0 when read Memory Space Indicator : Determines that the register maps into the memory space. The value in this field is 0. Tab - 11 CBMA Configuration Base Memory Address Register Description 3.2.7 Expansion ROM Base Address Register (CBER) FIELD R/W 31:10 9:1 0 R/W R R/W DESCRIPTION Expansion ROM Base Address This field value is 0 when read Expansion ROM Enable Bit : Active high Tab - 12 CBER Expansion ROM Base Address Register Description 3.2.8 Configuration Interrupt Register (CSIT) FIELD 31:24 23:16 15:8 7:0 R/W R R R R/W DESCRIPTION MAX_LAT : time unit is equal to 0.25 microsecond.(28H) MIN_GNT : Time unit is equal to 0.25 microsecond.(14H) Interrupt Pin : The AX88140A uses INTA# and the read value is (01H). Interrupt Line : The BIOS writes the routing information into this field. Tab - 13 CSIT Configuration Interrupt Register Description 19 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 4.0 Registers Operation 1. The REGs are quad-word aligned, 32-bits long, and must be accessed using long-word instruction with quad-word aligned addresses only. 2. Reserved bits should be written with 0.; Reserved bits are UNPREDICTABLE on read access. 3. Retries on second data transactions occur in response to burst accesses. 4.1 Registers Mapping REGISTER REG0 REG1 REG2 REG3 REG4 REG5 REG6 REG7 REG8 REG9 REG10 REG11 REG12 REG13 REG14 MEANING OFFSET FROM REG BASE ADDRESS (CBIO,CBMA) BUS MODE TRANSMIT POLL DEMAND RECEIVE POLL DEMAND RECEIVE LIST BASE ADDRESS TRANSMIT LIST BASE ADDRESS STATUS OPERATION MODE INTERRUPT ENABLE MISSED FRAME AND OVERFLOW COUNTER SERIAL ROM, AND MII MANAGEMENT GENERAL-PURPOSE TIMER GENERAL-PURPOSE PORT FILTERING BUFFER INDEX FILTERING BUFFER DATA 00H 08H 10H 18H 20H 28H 30H 38H 40H 48H 50H 58H 60H 68H 70H Tab - 14 Command and Status Register Mapping 20 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 4.2 Host REGs 4.2.1 Bus Mode Register (REG0) FIELD R/W/C DESCRIPTION 31:22 21 R/W 20 R/W 19:14 13:8 R/W 7 R/W 6:2 1 R/W 0 R/W RESERVED RML - Read Multiple When set, the AX88140A supports the memory-read-multiple command on the PCI bus. This bus command is used in memory read bursts with more than one longword. When reset, the AX88140A uses memory-read command in all its memory read accesses on the PCI bus. DBO - Descriptor Byte Ordering Mode When set, the AX88140A operates in big edian ordering mode for descriptors only. When reset, the AX88140A operates in little endian mode. Reserved.--Written as "0" for future compatibility concern. PBL - Programmable Burst Length Indicates the maximum number of longwords to be transfered in one DMA transaction. If reset, the ax88140a burst is limited only by the amount of data stored in the receive FIFO (at least 16 longword), or by the amount of free space in the transmit FIFO (at least 16 longword) before issuing a bus request. The PBL can be programmed with permissible values 0,1,2,4,8,16, or 32. After reset, the PBL default value is 0. BLE - Big/Little Endian When set, the AX88140A operates in big endian byte ordering mode. When reset, the AX88140A operates in little endian byte ordering mode. Big endian is applicable only for data buffer RESERVED BAR - Bus Arbitration Selects the internal bus arbitration between the receive and transmit processes. When set, a round robin arbitration scheme is applied resulting in equal sharing between processes. When reset, the receive process has priority over the transmit process, unless the ax88140a is currently transmitting. SWR - Software Reset When set, the AX88140A resets all internal hardware with the exception of the configuration area and also, it does not change the port select setting (REG6<18>). Software reset does not affect the configuration area. Tab - 15 REG0 Bus Mode Register Description 4.2.2 Transmit Poll Demand (REG1) FIELD R/W DESCRIPTION 31:0 W TPD - Transmit Poll Demand When written with any value, the AX88140A checks for frames to be transmitted. If no descriptor is available, the transmit process returns to the suspended states and REG5<2> is asserted. If the descriptor is available the transmit process resumes. Tab - 16 REG1 Transmit Poll Demand Register Description 21 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 4.2.3 Receive Poll Demand (REG2) FIELD R/W/C 31:0 W DESCRIPTION RPD - Receive Poll Demand When written with any value, the AX88140A checks for receive descriptors to be required. If no descriptor is available, the receive process returns to the suspended states and REG5<7> is not asserted. If the descriptor is available the receive process resumes. Tab - 17 REG2 Receive Poll Demand Register Description 4.2.4 Receive List Base Address (REG3) 1. The register is used to point the AX88140A to the start of receive descriptors list. 2. The descriptor list resides in physical memory space and must be longword aligned. The AX88140A behaves UNPREDICTABLY when the list are not longword aligned. 3. Writing to REG3 is permitted only when receive process is in the stopped state. That is, the REG3 must be written before the receive START command is given . REG3 Receive List Base Address Register Description FIELD R/W/C 31:2 1:0 R/W R/W DESCRIPTION Start of receive list Must be 00 for longword alignment Tab - 18 REG3 Receive List Base Address Register Description 4.2.5 Transmit List Base Address (REG4) 1. The register is used to point the AX88140A to the start of transmit descriptors list. 2. The descriptor list resides in physical memory space and must be long-word aligned. The AX88140A behaves UNPREDICTABLY when the list are not long-word aligned. 3. Writing to REG4 is permitted only when transmit process is in the stopped state. That is, the REG4 must be written before the transmit START command is given . FIELD R/W/C 31:2 1:0 R/W R/W DESCRIPTION Start of transmit list Must be 00 for long-word alignment Tab - 19 REG4 Transmit List Base Address Register Description 22 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 4.2.6 Status Register (REG5) 1. 2. 3. 4. The status register contains all the status bits that the AX88140A reports to the host. Most of the fields in this register cause the host to be interrupted. REG5 bits are not cleared when read. Writing 1 to these bits clears them; writing 0 has no effect. Each field can be masked. Field R/W/C 31:26 25:23 R 22:20 19:17 16 15 R R 13 R 11 R/W/C 10 R/W/C 9 R/W/C 8 R/W/C 7 R/W/C 6 R/W/C 5 R/W/C 4 - Description Reserved EB - Error Bits (Not generate interrupt) Indicates the type of error that caused system error. Valid only when fatal bus error REG5<13> is set. 25 24 23 Description 0 0 0 Parity error 0 0 0 1 1 0 Master abort Target abort 0 1 1 Reserved 1 x x Reserved Reserved.--Written as "0" for future compatibility concern. Reserved.--Written as "0" for future compatibility concern. NIS - Normal Interrupt Summary Only the unmasked bits affect normal interrupt summary REG5<16> bit Normal interrupt summary bit. Its value is the logical OR of : CSR5<0> transmit interrupt CSR5<2> transmit buffer unavailable CSR5<6> receive interrupt CSR5<10> Early transmit interrupt CSR5<11> General-purpose timer expired AIS - Abnormal Interrupt Summary Only unmasked bits affect only the abnormal interrupt summary REG5<15> bit. Abnormal interrupt summary bits. Its value is the logical OR of : CSR5<1> transmit process stopped CSR5<3> transmit jabber time out CSR5<5> transmit under-flow CSR5<7> receive buffer unavailable CSR5<8> receive process stopped CSR5<9> receive watchdog time out CSR5<13> fatal bus error FBE - Fatal Bus Error Indicates that a system error occurred. If a system error occurs, all bus accesses are disabled GTE - General Purpose Timer Expired Indicates that the general-purpose timer (REG11) counter has expired. This timer is mainly used by the software driver. ETI - Early Transmit Interrupt Indicates that the packet to be transmitted was fully transferred into the chip`s internal transmit FIFOs. Transmit interrupt (REG5<0>) automatically clears this bit. RWT - Receive watchdog Time out Indicates that the receive watchdog timer expired and another node is still active on the network. In case of overflow, the long packets may not be received. RPS - Receive Process Stopped Asserts when the receive process enters stopped state. RU - Receive Buffer Unavailable Indicates the next descriptor in the receive list is owned by the host and cannot be acquired by the AX88140A.The reception process is suspended. RI - Receive Interrupt Indicates the completion of a frame reception. Specific frame status information has been posted in the descriptor. The reception process remains in the running state. UNF - Transmit Under-flow Indicates that the transmit FIFO had an under-flow condition during the packet transmission. The transmit process is placed in the suspended state and under-flow error TDES0<1> is set. Reserved.--Written as "0" for future compatibility concern. 23 ASIX ELECTRONICS CORPORATION AX88140A 3 R/W/C 2 R/W/C 1 R/W/C 0 R/W/C PRELIMINARY TJT - Transmit Jabber Time-out Indicates that the transmit jabber timer expired, meaning that the AX88140A transmitter had been excessively active. The transmission process is aborted and placed in the stopped state. This event causes the transmit jabber time-out TDES0<14> is set. TU - Transmit Buffer Unavailable Indicates that the next descriptor on the transmit list is owned by the host and cannot be acquired by the AX88140A.The transmission process is suspended. To resume processing transmit descriptors, the host should change the ownership bit of the descriptor and then issue a transmit poll demand command. TPS - Transmit Process Stopped Asserts when the transmit process enters the stopped state. TI - Transmit Interrupt Indicates that a frame transmission was completed, while TDES1<31> is asserted in the first descriptor of the frame. Tab - 20 REG5 Status Register Description 4.2.7 Operation Mode Register (REG6) 1. 2. REG6 establishes the receive and transmit operating modes and commands. REG6 should be the last REG to be written as part of initialization. Field R/W/C 31 30 R/W 29:25 24 R/W 23 R/W 22 R/W 21 R/W 20 19 R/W 18 R/W Description Reserved RA - Receive All 1 All incoming packets will be received 0 Filtering mode Reserved.--Written as "0" for future compatibility concern. SCR - Scrambler Mode 1 Enable Scrambler 0 Disable Scrambler PCS - PCS Mode 1 PCS functions are active TTM - Transmit Threshold Mode 0 MII/SYM port is not selected 1 Threshold is 10Mb/s 0 Threshold is 100Mb/s SF - Store and Forward 1 Enable Store and Forward 0 Disable Store and Forward Reserved.--Written as "0" for future compatibility concern. HBD - Heartbeat Disable 1 Heartbeat Disable 0 Heartbeat Enable PS - Port Select 1 MII/SYM port is selected. 0 17:16 15:14 R/W SRL port is selected Reserved.--Written as "0" for future compatibility concern. TR - Threshold Control Bits The threshold value has a direct impact on the AX88140A bus arbitration scheme . Transmission starts when the frame size within the transmit FIFO is larger than the threshold. In addition, full frames with a length less than the threshold are also transmitted. The transmit process must be in the stopped state to change these bits. Controls the selected threshold level for the AX88140A transmit FIFO. Four threshold levels are allowed. REG6<18>=0 REG6<18>=1 REG6<18>=1 REG6<21> 0 REG6<15:14> 00 0 01 96 96 256 0 10 128 128 512 0 11 160 160 1024 1 XX Store & Forward Store & Forward Store & Forward 13 R/W ST - Start/Stop Transmission 12 R/W FC - Force Collision Mode 11:10 R/W OM - Operating Mode 9 R/W FD - Full-Duplex Mode REG6<22>=X 72 1 0 1 0 00 01 10 1 24 REG6<22>=1 72 REG6<22>=0 128 Start Transmission Stop Transmission Enable force collision Disable force collision Normal Internal Loop-back External Loop-back Full-Duplex ASIX ELECTRONICS CORPORATION AX88140A 8 R/W 7 R/W 6 R/W 5:4 3 R/W 2 1 R/W 0 R PRELIMINARY 0 1 0 1 0 1 Half-Duplex RB - Receive broadcast packet Accept broadcast packet Reject broadcast packet PM - Pass All Multicast Enable Pass All Multicast Disable Pass All Multicast PR - Promiscuous Mode Indicates that any incoming valid frame is received, regardless of its destination address. 0 Disable Promiscuous Mode. Reserved.--Written as "0" for future compatibility concern. PB - Pass Bad Frames 1 All incoming frames that passed the address filtering are received, including runt frames, collided fragments, or truncated frames caused by FIFO over-flow. If any received bad frames are required, promiscuous mode (REG6<6>) should be set to 1. 0 Disable pass bad frame. Reserved.--Written as "0" for future compatibility concern. SR - Start/Stop Receive 1 Start Receive 0 Stop Receive PLS - PCS_SYM Link Status : Active high. Tab - 21 REG6 Operation Mode Register Description Port and Data Rate Selection REG6 <18> REG6 <22> REG6 <23> REG6 <24> ACTIVE PORT DATA RATE 0 1 0 1 X 0 X 0 SRL MII/SYM 10MB/S 10MB/S 1 0 0 0 MII/SYM 1 1 0 0 1 1 0 1 MII/SYM MII/SYM FUNCTION Conventional 10MB/S ENDEC interface MII with transmit FIFO thresholds appropriate for 10MB/S 100MB/S MII with transmit FIFO thresholds appropriate for 100MB/S 100MB/S PCS function for 100BASE-FX 100Mb/s PCS and scrambler functions for 100BASE-T Tab - 22 Port and Data Rate Selection 25 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 4.2.8 Interrupt Enable Register (REG7) 1. 2. The interrupt enable register (REG7) enables the interrupts reported by REG5. Setting bit to 1 enables a corresponding interrupt. After a hardware or software reset, all interrupts are disabled. Field R/W/C 31:17 16 R/W 15 R/W 13 11 10 9 8 7 6 5 4 3 2 1 0 R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W Description Reserved NI - Normal Interrupt Summary Enable When set, normal interrupt is enabled. When reset, no normal interrupt is enabled. This bit (REG7<16>) enables the following bits : CSR5<0> Transmit interrupt CSR5<2> Transmit buffer unavailable CSR5<6> Receive interrupt CSR5<10> Early transmit interrupt CSR5<11> General-purpose timer expired AI - Abnormal Interrupt Summary Enable When set, abnormal interrupt is enabled. When reset, no abnormal interrupt is enabled. This bit (REG7<15>) enables the following bits : CSR5<1> transmit process stopped CSR5<3> transmit jabber time-out CSR5<5> transmit under-flow CSR5<7> receive buffer unavailable CSR5<8> receive process stopped CSR5<9> receive watchdog time-out CSR5<11> fatal bus error FBE - Fatal Bus Error interrupt enable. Active high. GPT - General purpose Timer interrupt Enable. Active high. ETE - Early Transmit Interrupt Enable. Active high. RW - Receive Watchdog Time out interrupt Enable. Active high RS - Receive Stopped interrupt Enable. Active high. RU - Receive Buffer Unavailable interrupt Enable. Active high. RI - Receive Interrupt Enable. Active high. UN - under-flow interrupt Enable. Active high. Reserved.--Written as "0" for future compatibility concern. TJ - Transmit Jabber Time out interrupt Enable. Active high. TU - Transmit Buffer Unavailable interrupt Enable. Active high. TS - Transmission Stopped interrupt Enable. Active high. TI - Transmit Interrupt Enable. Active high. Tab - 23 REG7 Interrupt Enable Register Description 4.2.9 Missed Frame and Overflow Counter (REG8) Field R/W 31:29 28 R/C 27:17 R/C 16 R/C 15:0 R/C Description Reserved Overflow counter overflow Sets When the overflow counter overflows, Resets When REG8 is read. Overflow counter Indicates the number of frames discarded because of overflow. The counter clears when read. Missed frame overflow Sets When the missed frame counter overflows; Resets When reg8 is read. Missed Frame Counter Indicates the number of frames discarded because no host receive descriptors were available. The counter clears when read. Tab - 24 REG8 Missed Frame and Overflow Counter Description 26 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 4.2.10 Serial ROM and MII Management Register (REG9) 1. 2. The register provides an interface to the Microwire serial ROM and to the physical layer protocol (PHY). It selects the device and contains both the commands and data to be read from and stored in the serial ROM. The MII management selects and operation mode for reading and writing the MII. FIELD R/W/C DESCRIPTION 31:20 19 R 18 R/W 17 R/W 16 R/W 14 R/W 13:12 11 R/W 10:4 3 R/W 2 R Reserved.--Written as "0" for future compatibility concern. MDI - MII management data_in Used by the AX88140A to read data from the PHY MII - MII management operation mode Defines the operation mode (read or write) of the PHY. MDO - MII Management write data Specifies the value of the data that AX88140A writes to the PHY MDC - MII Management clock MII management data clock (MII_MDC) is an output signal to the PHY. it is used as a timing reference. RD - Read operation Read control bit. When set together with REG9<12>, The AX88140A performs read cycles from the BOOT ROM, and the serial ROM. Reserved.--Written as "0" for future compatibility concern. SR - SERIAL ROM select When set together with either SERIAL ROM read operation (REG9<14>) or SERIAL ROM Write operation (REG9<13>), The AX88140A selects the SERIAL ROM. Reserved.--Written as "0" for future compatibility concern. SDO - SERIAL ROM data_out SERIAL ROM data output(SR_DO) From the SERIAL ROM device to the AX88140A. SDI - SERIAL ROM data_in SERIAL ROM Data input(SR_DI) To the SERIAL ROM device from the AX88140A. 1 R/W SCLK - SERIAL ROM serial clock Serial clock (SR_CK) Output to the SERIAL ROM. 0 R/W SCS - Serial ROM Chip Select Chip select (sr_cs) output to the serial ROM. Tab - 25 REG9 Serial ROM, and MII Management Register Description 4.2.11 General -Purpose Timer (REG11) 1. 2. This register contains a 16 bit general-purpose timer. It is used mainly by the software driver for timing functions not supplied by the operating system. After the timer is loaded, it starts counting down . The expiration of the timer causes an interrupt in REG5<11>. If the timer expires with the CON bit on, the counter will load itself automatically with the last value. The timer is not active in snooze mode. Field 31:17 16 R/W/C R/W Description Reserved.--Written as "0" for future compatibility concern. CON - Continuous Mode 1 Continuous operating mode. 0 15:0 R/W One-shot operating mode. Timer value Contains the general-purpose timer value within a N microsecond cycle. SRL_10M : 204.8us MII_10M : 819.2us MII_100M : 81.92us 27 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY Tab - 26 REG11 General -Purpose Timer Register Description 4.2.12 General -Purpose Port Register (REG12) Field R/W/C 31:9 - 8 R/W Description Reserved.--Written as "0" for future compatibility concern. GPC - General Purpose Control . When a hardware reset is initiated, all gep pins become input pins. 1 Indicate next write REG12<7:0> is use for define General purpose port in/out direction. Indicate next write REG12<7:0> is use for read/write general purpose port data. 0 7:0 R/W MD - General Purpose Mode and Data Tab - 27 REG12 General -Purpose Port Register Description 4.2.13 Filtering Index (REG13) FIELD R/W/C DESCRIPTION 31:6 5:0 R/W Reserved.--Written as "0" for future compatibility concern. FI - Filtering Index When writing data to filtering buffer, uses filtering index register REG13 to point the position (buffer number) in filtering buffer. The valid value is between 0 and 3. Tab - 28 REG13 Filtering Index Register Description 4.2.14 Filtering data (REG14) FIELD R/W/C DESCRIPTION 31:0 R/W FD - Filtering Data By indexed by filtering index register REG13, write the filtering data register REG14 to put filtering address/hash table into filtering buffer.. Tab - 29 REG14 Filtering Data Register Description Filtering Buffer The AX88140A stores one Ethernet address for local physical address and filters the packets with multicast addresses by 64 bits array. For any incoming frame with a multicast destination address, the AX88140A applies the standard Ethernet cyclic redundancy check function to the destination address, then uses the most significant 6 bits of the result as a bit index into the table. If the indexed bit is set, the frame is accepted. If the bit is reset, the frame is rejected. Description of Filtering Buffer BUFFER NUMBER 0 1 2 3 DESCRIPTION BYTE 0 - 3 OF LOCAL PHYSICAL ADDRESS BYTE 4 - 5 OF LOCAL PHYSICAL ADDRESS IN THE LEAST SIGNIFICANT WORD BIT 0 - 31 OF MULTICAST ADDRESS FILTERING TABLE Bit 32 - 63 of multicast address filtering table Tab - 30 Description of Filtering Buffer Layout of Filtering Buffer BUFFER NUMBER BYTE 3 0 PHYSICAL ADDRESS BYTE 3 BYTE 2 BYTE 1 PHYSICAL ADDRESS PHYSICAL ADDRESS BYTE 2 BYTE 1 28 BYTE 0 PHYSICAL ADDRESS BYTE 0 ASIX ELECTRONICS CORPORATION AX88140A 1 2 3 PRELIMINARY RESERVED RESERVED PHYSICAL ADDRESS PHYSICAL ADDRESS BYTE 5 BYTE 4 MULTICAST ADDRESS MULTICAST ADDRESS FILTERING FILTERING TABLE BIT 0-7 TABLE BIT 8 - 15 MULTICAST MULTICAST ADDRESS ADDRESS FILTERING TABLE FILTERING TABLE BIT 16 - 23 BIT 24 - 31 multicast address multicast address filtering multicast address filtering multicast address table bit 40 - 47 table bit 32 - 39 filtering table bit 56 - filtering table bit 48 - 55 63 Tab - 31 Layout of Filtering Buffer 29 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 5.0 Host Communication Descriptor lists and data buffers, collectively called the host communication, reside in the host memory and manage the actions and status related to buffer management. 5.1 Descriptor Lists and Data Buffers The AX88140A transfers data frames to the receive buffers and from the transmit buffers in host memory. Descriptors that reside in the host memory act as pointers to these buffers. There are two descriptor lists, one for receive and one for transmit. The base address of each list is written into REG3 and REG4, respectively. A descriptor list is forward-linked (explicitly). The last descriptor may point back to the first entry to create a ring structure. Explicit chaining of descriptors is accomplished by setting the address pointer chained in both the receive and transmit descriptors (RDES3 and TDES3). The descriptor lists reside in the host physical memory address space. A data buffer consists of either an entire frame or part of a frame, but it cannot exceed a single frame. Buffers contain only data; buffer status is maintained in the descriptor. Data chaining refers to frames that span multiple data buffers. Descriptor Structure Example Buffer 1 Descriptor 0 Buffer 2 Descriptor 1 Next Descriptor Fig - 4 Descriptor Structure Example 30 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 5.2 Receive Descriptors The receive descriptor provides one buffer, one byte-count buffer, and one address pointer in each descriptor. Descriptors and receive buffers addresses must be long-word aligned. Receive Descriptor Format RDES0 RDES1 31 O W N 0 Status Control bits Byte Count Buffer 2 RDES2 Buffer Address 1 RDES3 Buffer Address 2 Byte Count Buffer 1 Fig - 5 Receive Descriptor Format 5.2.1 Receive Descriptor 0 (RDES0) RDES0 contains the received frame status, the frame length, and the descriptor ownership information. Field 31 30 29:16 15 14 13:12 11 Description OWN - Own Bit The AX88140A clears this bit either when it completes the frame reception or when the buffers that are associated with this descriptor are full. FF - Filtering Fail This bit can be set only when receive all (REG6<30>) is set. 1 0 1 0 Indicates that the descriptor is owned by the AX88140A Indicates that the descriptor is owned by the host Indicates that the frame failed the address recognition filtering Indicates that the frame passed the address recognition filtering FL - Frame Length Indicates the length in bytes of the received frame including the cyclic redundancy check (CRC). This field is valid only when last descriptor (RDES0<8>) is set and descriptor error ( RDES0<14>) is reset. ES - Error Summary Indicates the logical OR of the following RDES0 bits : This field is valid only when last descriptor (RDES0<8>) is set. RDES0<1> CRC error RDES0<6> collision seen RDES0<7> frame too long RDES0<11> runt frame RDES0<14> descriptor error DE - Descriptor Error. The frame is truncated. Active high. This field is valid only when last descriptor (RDES0<8>) is set. Reserved.--Written as "0" for future compatibility concern. RF - Runt Frame. Indicates that this frame is a runt frame. Active high. This field is valid only when last descriptor (RDES0<8>) is set . 31 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 10 MF - Multicast Frame Indicates that this frame is a multicast address. This field is valid only when last descriptor (RDES0<8>) is set. 9 FS - First Descriptor 8 LS - Last Descriptor 1 Indicates that this descriptor contains the first buffer of a frame. 0 Indicates that this descriptor is the middle or last buffer of a frame. Indicates that the buffers pointed to by this descriptor, are the last buffers Indicates that this descriptor is the middle or first buffer of a frame. 1 0 7 TL - Frame Too Long. Frame length grater then 1518 bytes. Active high. This field is valid only when last descriptor (RDES0<8>) is set. 6 CS - Collision Seen. This is a late collision. This field is valid only when last descriptor (RDES0<8>) is set. 5 4 Reserved.--Written as "0" for future compatibility concern. RW - Receive Watchdog time expire. Active high. This field is valid only when last descriptor (RDES0<8>) is set. 3 2 RE - Report on MII Error. Active high. DB - Dribbling Bit Active high. If set, and CRC error (RDES0<1>) is reset, then the packet is valid. CE - CRC Error. Active high. This field is valid only when last descriptor (RDES0<8>) is set. FIFO Overrun. Active high. 1 0 Tab - 32 Receive Descriptor 0 5.2.2 Receive Descriptor 1 (RDES1) FIELD 31:11 10:0 DESCRIPTION Reserved.--Written as "0" for future compatibility concern. RBS - Receive Data Buffer Size Indicates the size in bytes of the data buffer. If this field is 0, the AX88140A ignores this buffer. The buffer size must be a multiple of 4. Tab - 33 Receive Descriptor 1 5.2.3 Receive Descriptor 2 (RDES2) FIELD 31:0 DESCRIPTION Data Buffer Pointer Indicates the physical address of data buffer. The buffer must be long-word-aligned (RDES2<1:0>=00). Tab - 34 Receive Descriptor 2 5.2.4 Receive Descriptor 3 (RDES3) FIELD 31:0 DESCRIPTION Address Pointer Indicates the physical address of next descriptor. The address must be long-word aligned (RDES3<1:0>=00). Tab - 35 Receive Descriptor 3 32 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 5.3 Transmit Descriptors Providing one buffer, one byte-count buffer, and two address pointers in each descriptor . Transmit Descriptor Format 31 O TDES0 W N TDES1 0 Status Control bits Byte Count Buffer 2 TDES2 Buffer Address 1 TDES3 Buffer Address 2 Byte Count Buffer 1 Fig - 6 Transmit Descriptor Format 5.3.1 Transmit Descriptor 0 (TDES0) TDES0 contains transmitted frame status and descriptor ownership information. Field 31 30:16 15 14 13:12 11 10 9 8 7 6:3 2 Description OWN - Own Bit 1 Indicates that the descriptor is owned by the AX88140A. 0 Indicates that the descriptor is owned by the host. Reserved.--Written as "0" for future compatibility concern. ES - Error Summary Indicates the logical OR of the following bits : TDES0<1> under-flow error TDES0<8> successive collisions TDES0<9> late collision TDES0<10> no carrier TDES0<11> loss of carrier TDES0<14> transmit jabber time-out TO - Transmit Jabber Time-out : Active high. The transmission process is aborted and placed in the STOPPED state. When TDES0<14> is set any heartbeat fail indication (TDES0<7>) is not valid. Reserved.--Written as "0" for future compatibility concern. LO - Loss of Carrier during transmission. Active high. (The status is no meaning except 10BASE SRL mode) Not valid in internal loop-back mode (REG6<11:10>=01). NC - No Carrier. Indicates that the carrier signal from the transceiver was not present during transmission. Active high. Not valid in internal loop-back mode (REG6<11:10>=01). LC - Late Collision. When set, indicates that the frame transmission was aborted due to collision occurring after the collision window of 64 bytes. Not valid if under-flow error (TDES0<1>) is set. EC - Excessive Collision When set, indicates that the transmission was aborted after 16 successive collisions while attempting to transmit the current frame. HF - Heartbeat Fail This bit is effective only in 10Mb/s operation mode. When set, indicates a heartbeat collision check failure This bit is not valid if under-flow error (TDES0<1>) is set. On the second transmission attempt, after the first transmission was aborted due to collision, the AX88140A does not check heartbeat fail and (TDES0<7>) is reset. CC - Collision Count This 4-bit counter indicates the number of collisions that occurred before the frame was transmitted. Not valid when the excessive collisions bit (TDES0<8>) is also set. Reserved.--Written as "0" for future compatibility concern. 33 ASIX ELECTRONICS CORPORATION AX88140A 1 0 PRELIMINARY UF - Under-flow Error When set, indicates that the transmitter aborted the message because data arrived late from memory. Underflow error indicates that the AX88140A encountered an empty transmit FIFO while transmitting a frame. The transmission process enters the suspended state and sets both transmit under-flow (REG5<0>) and transmit interrupt (REG5<0>). DE - Deferred When set, indicates that the AX88140A had to defer while ready to transmit a frame because the carrier was asserted. Tab - 36 Transmit Descriptor 0 5.3.2 Transmit Descriptor 1 (TDES1) Field Description 31 IC - Interrupt on Completion When set, the AX88140A sets transmit interrupt (REG5<0>) after the present frames has been transmitted. It is valid only when first segment (TDES1<30>) is set. LS - Last Segment 1 Indicates that the buffer contains the last segment of a frame. 30 29 28:27 26 25:24 23 FS - First Segment 0 Indicates that the buffer contains the first or middle segment of a frame. 1 Indicates that the buffer contains the first segment of a frame. 0 Indicates that the buffer contains the middle or last segment of a frame. Reserved.--Written as "0" for future compatibility concern. AC - Add CRC Disable When set, the AX88140A does not append the CRC to the end of the transmitted frame. This field is valid only when first segment (TDES1<29>) is set. Reserved.--Written as "0" for future compatibility concern. DPD - Disabled Padding 1 the AX88140A does not automatically add a padding field, The CRC field is added despite the state of so a packet shorter than 64 bytes. the add CRC disable (TDES1<26>) flag. 0 22:11 10:0 The AX88140A automatically adds a padding field and also a CRC field to a packet shorter than 64 bytes. Reserved.--Written as "0" for future compatibility concern. Data Buffer Size Indicates the size, in bytes, of the data buffer. If this field is 0, the AX88140A ignores this buffer. Tab - 37 Transmit Descriptor 1 5.3.3 Transmit Descriptor 2 (TDES2) Field 31:0 Description Data Buffer Pointer Physical address of data buffer. There are no limitations on the buffer address alignment. Tab - 38 Transmit Descriptor 2 5.3.4 Transmit Descriptor 3 (TDES3) Field 31:0 Description Address Pointer Physical address of next descriptor address. There are no limitation on the buffer address alignment. Tab - 39 Transmit Descriptor 3 34 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 6.0 Electrical Specification and Timings 6.1 Absolute Maximum Ratings Description SYM Min Max Units Operating Temperature Ta 0 +70 C Storage Temperature Ts -55 +150 C Supply Voltage Vcc -0.5 +7 V Input Voltage Vin Vss-0.5 Vdd+0.5 V Output Voltage Vout Vss-0.5 Vdd+0.5 V Lead Temperature (soldering 10 seconds maximum) Tl -55 +250 C Note : Stress above those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to Absolute Maximum Ratings conditions for extended period, adversely affect device life and reliability 6.2 General Operation Conditions Description Operating Temperature Supply Voltage SYM Min 0 +4.75 Max +70 +5.25 Units C V SYM Min Vss-0.5 2 2.4 - Max 0.8 Vdd+0.5 0.4 10 500 10 Units V V V V uA uA uA Ta Vdd 6.3 DC Characteristics (Vdd=4.75V to 5.25V, Vss=0V, Ta=0C to 70C) Description Low Input Voltage High Input Voltage Low Output Voltage High Output Voltage Input Leakage Current 1 (Note 1) Input Leakage Current 2 (Note 2) Output Leakage Current Vil Vih Vol Voh Iil1 Iil1 Iol Note : 1. All the input pins without pull low or pull high. 2. Those pins had been pull low or pull high. 35 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 6.4 A.C. Timing Characteristics 6.4.1 PCI CLOCK Symbol Tcyc Thigh Tlow Tr/Tf Description CYCLE TIME PCI_CLK HIGH TIME PCI_CLK LOW TIME PCI_CLK SLEW RATE Min 30 11 11 1 Typ. - Max 45 4 Units ns ns ns ns Min 2 2 7 0 Typ. - Max 11 28 - Units ns ns ns ns ns Min 10 Typ. - Max - Units PCI Clk 6.4.2 PCI Timings PCI_CLK Tval (max) Tval (min) OUTPUT Ton Toff INPUT Tsu Symbol Tval Ton Toff Tsu Th Th Description CLK TO SIGNAL VALID DELAY FLOAT TO ACTIVE DELAY ACTIVE TO FLOAT DELAY INPUT SETUP TIME TO CLK INPUT HOLD TIME FROM CLK 6.4.3 Reset Timing PCI_CLK RST# Symbol Trst Description Reset pulse width 36 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 6.4.4 MII/SYM Timing Ttclk Ttch Ttcl MTCLK/SYMTCLK Ttv Tth MTXD<3:0>/SYMTXD<3:0> MTXEN/SYMTXEN Trclk Trch Trcl MRCLK/SYMRCLK Trs Trh MRXD<3:0>/SYMRXD<3:0> MTXEN/SYMTXEN Trs1 MRXERR,SD Symbol Ttclk Ttclk Ttch Ttch Trch Trch Ttv Tth Trclk Trclk Trch Trch Trcl Trcl Trs Trh Trs1 Description Min 14 140 14 140 5 14 140 14 140 6 10 10 Cycle time(100Mbps) Cycle time(10Mbps) high time(100Mbps) high time(10Mbps) low time(100Mbps) low time(10Mbps) Clock to data valid Data output hold time Cycle time(100Mbps) Cycle time(10Mbps) high time(100Mbps) high time(10Mbps) low time(100Mbps) low time(10Mbps) data setup time data hold time SD, MRXERR data setup time 37 Typ. 40 400 40 400 - Max 26 260 26 260 20 26 260 26 260 - Units ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 6.4.5 10Mbps serial timing Tstc Tstcl SRL_TCLK Tsto Tstch Tsth SRL_TXD SRL_TXEN Tsto1 Tsrc SRL_RCLK Tsrs Tsrch Tsrcl Tsrh SRL_RXD SRL_RXEN Symbol Tstc Tstch Tstcl Tsto Tsto1 Tsth Tsrc Tsrch Tsrcl Tsrs Tsrh Description SRL_TCLK Cycle time Clock high time Clock low time Data output delay SRL_TXEN data output delay Data output hold time SRL_RCLK Cycle time Clock high time Clock low time Data input Setup time Data input hold time Min 85 45 45 5 85 45 45 10 5 38 Typ. - Max 118 55 55 26 26 118 55 55 - Units ns ns ns ns ns ns ns ns ns ns ns ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 6.4.6 Boot ROM Read Cycles Boot ROM Byte Read Cycle br_ad<7:0> address 9-2 address 17-10 data br_a1 address 1 br_a0 address 0 brce# Boot ROM Dword Read Cycle br_ad<7:0> address 9-2 address 17-10 data3 data2 data1 data0 br_a1 br_a0 brce# 39 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY 7.0 Package Information A2 A1 L L1 D Hd He E pin 1 e b AAAA AAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA 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AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA 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AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAA AAAA AAAA AAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 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AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAA AAAA AAAA 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AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA 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AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAAAAAAAAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA AAAA SYMBOL MILIMETER MIN. NOM MAX A1 0.05 0.25 0.5 A2 3.17 3.32 3.47 b 0.20 0.30 0.40 D 27.90 28.00 28.10 E 27.90 28.00 28.10 e 0.65 Hd 30.95 31.20 31.45 He 30.95 31.20 31.45 L 0.65 0.80 0.95 L1 1.60 0 10 40 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY APPENDIX A H/W NOTE A.1 Boot ROM read cycle ASIX 88140 Boot ROM Byte Read Cycle br_ad<7:0> address 9-2 address 17-10 data br_a1 address 1 br_a0 address 0 brce# 27512 74LS374 BRAD0 BRAD1 BRAD2 BRAD3 BRAD4 BRAD5 BRAD6 BRAD7 GND BRA1 D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 74LS374 A10 A11 A12 A13 A14 A15 A16 A17 D0 D1 D2 D3 D4 D5 D6 D7 GND OC CLK BRA0 BRA1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A2 A3 A4 A5 A6 A7 A8 A9 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 OC CLK A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 BR_CE GND Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 BRAD0 BRAD1 BRAD2 BRAD3 BRAD4 BRAD5 BRAD6 BRAD7 /CE /OE DEC 21140 Boot ROM Byte Read Cycle: br_ad<7:0> address 7-2 address 15-8 data br_a1 address 1 br_a0 address 17 address16 address 0 brce# 27512 74LS374 BRAD0 BRAD1 BRAD2 BRAD3 BRAD4 BRAD5 BRAD6 BRAD7 GND BRA1 D0 D1 D2 D3 D4 D5 D6 D7 OC CLK Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 BRA0 BRA1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 74LS374 A8 A9 A10 A11 A12 A13 A14 A15 GND D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 /WE /OE A2 A3 A4 A5 A6 A7 OC CLK BR_CE /OE 41 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 BRAD0 BRAD1 BRAD2 BRAD3 BRAD4 BRAD5 BRAD6 BRAD7 /CE /OE ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY A.2 Power Supply AX88140A power supply is +5V DC DEC 21140 power supply is +3.3V DC A.3 Boundary Scan Test Pins AX88140A do not support boundary scan test pins DEC 21140 supports boundary scan test pins 42 ASIX ELECTRONICS CORPORATION AX88140A APPENDIX PRELIMINARY B Function Application B.1 Application for PCI Interface Features : l Direct interface to PCI Bus. l Support 33 MHz no wait state PCI Bus Interface. l Powerful on chip buffer management DMA. And PCI Bus master operation reduce CPU utilization. l 5 Volt CMOS process. PCI Interface Schematic: PCI BUS CONNECTOR AX88140A PCI I/O PINS AD[31:0] C/BE[3:0] PAR PCI SLOT MAC FRAME# TRDY# IRDY# STOP# DEVSEL# IDSEL PERR# SERR# REQ# GNT# CLK RST# The pull high resisters are required for pin REQ#, GNT#, PERR#, and SERR# on MAC for more detail please to check the schematic. 43 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY B.2 Application for Boot ROM Interface AX88140A Boot ROM Byte Read Cycle BR_AD<7:0> address 9-2 address 17-10 data BR_A1 address 1 BR_A0 address 0 BRCE# 27512 74LS374 BRAD0 BRAD1 BRAD2 BRAD3 BRAD4 BRAD5 BRAD6 BRAD7 GND BRA1 D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 OC CLK BRA0 BRA1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 74LS374 A10 A11 A12 A13 A14 A15 A16 A17 GND D0 D1 D2 D3 D4 D5 D6 D7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 A2 A3 A4 A5 A6 A7 A8 A9 OC CLK BR_CE GND A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 BRAD0 BRAD1 BRAD2 BRAD3 BRAD4 BRAD5 BRAD6 BRAD7 /CE /OE B.3 Application for Serial ROM Interface AX88140A Serial ROM Interface Serial ROM Chip Select Serial ROM Clock Serial ROM Data In Serial ROM Data Out 44 Serial ROM 93C46 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY B.4 Application for PHY Interface B.4.1 AX88140A, QSI6611, & MTD213 Application SNI RJ-45 ST 6114 X`former QSI 6611 Transceiver for 100BASE TX Scrambler / Descrambler 5/4 bit converter AX88140A MAC Controller MTD213 10 BASE T Transceiver Fig - 7 Application for PCS / Serial Mode B.4.2 Application for MII Mode : LEVEL ONE LXT970 MII STA A.N. LXT970 PHY 4B/5B RJ-45 MII ST 6114 X`former AX88140A MAC Controller 10BASE-T Transceiver Scrambler / Descrambler Fig - 8 Application for MII Mode with LXT970 45 ASIX ELECTRONICS CORPORATION AX88140A PRELIMINARY B.4.3 Application for MII Mode : MYSON MTD972 + MTD971 MII STA A.N. MTD972 PHY + MTD971 T/R RJ-45 MII ST 6166 X`former AX88140A MAC Controller 10BASE-T Transceiver Scrambler / Descrambler 4B/5B Fig - 9 Application for MII Mode with MTD972 +MTD971 B.4.4 Application for MII Mode : DAVICOM DM9101 MII STA A.N. DM9101 PHY Scrambler / Descrambler 4B/5B RJ-45 MII YCL 20PMT04 X`former AX88140A MAC Controller 10BASE-T Transceiver Fig - 10 Application for MII Mode with DM9101 46 ASIX ELECTRONICS CORPORATION