935282113551 - NXP SEMICONDUCTORS

1. General description

The PX1011B is a high-performance, low-power, single-lane PCI Express electrical

PHYsical layer (PHY) that handles the low level PCI Express protocol and signaling. The

PX1011B PCI Express PHY is compliant to the PCI Express Base Specification,

Rev. 1.0a, and Rev. 1.1. The PX1011B includes features such as Clock and Data

Recovery (CDR), data serialization and de-serialization, 8b/10b encoding, analog buffers,

elastic buffer and receiver detection, and provides superior performance to the Media

Access Control (MAC) layer devices.

The PX1011B is a 2.5 Gbit/s PCI Express PHY with 8-bit data PXPIPE interface. Its

PXPIPE interface is a superset of the PHY Interface for the PCI Express (PIPE)

specification, enhanced and adapted for off-chip applications with the introduction of a

source synchronous clock for tr ansmit a nd receive dat a. The 8-bit da t a inte rface opera tes

at 250 MHz with SSTL_2 signaling. The SSTL_2 signaling is compatible with the I/O

interfaces available in FPGA products.

The PX1011B PCI Express PHY supports advanced power management functions.

The PX1011BI is for the industrial temperature range (40 C to +85 C).

Automotive AEC-Q100 compliant version PX1011B-EL1/Q900 is available.

2. Features and benefits

2.1 PCI Express interface

Compliant to PCI Express Base Specification 1.1

Single PCI Express 2.5 Gbit/s lane

Data and clock recovery from serial stream

Serializer and De-serializer (SerDes)

Receiver detection

8b/10b coding and decoding, elastic buffer and word alignment

Supports loopback

Supports direct disparity control for use in transmitting compliance pattern

Supports lane polarity inversion

Low jitter and Bit Error Rate (BER)

2.2 PHY/MAC interface

Based on Intel PHY Interface for PCI Express architecture v1.0 (PIPE)

Adapted for off-chip with additional synchronous clock signals (PXPIPE)

8-bit parallel data interface for transmit and receive at 250 MHz

2.5 V SSTL_2 class I signaling

PX1011B

PCI Express stand-alone X1 PHY

Rev. 6 — 27 June 2011 Product data sheet

Product data sheet Rev. 6 — 27 June 2011 2 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

2.3 JTAG interface

JTAG (IEEE 1149.1) boundary scan interface

Built-In Self Test (BIST) controller tests SerDes and I/O blocks at speed

3.3 V CMOS signaling

2.4 Power management

Dissipates < 300 mW in L0 normal mode

Support power management of L0, L0s and L1

2.5 Clock

100 MHz external refe re nc e cl oc k w ith 300 ppm tolerance

Supports spread spectrum clock to reduce EMI

On-chip reference clock termination

2.6 Miscellaneous

LFBGA81 leaded or lead-free packages

Operating am b ien t tem p er ature

Commercial: 0 C to +70 C

Industrial: 40 C to +85 C

ESD protection voltage for Human Body Model (HBM): 2000 V

3. Quick reference data

Table 1. Quick reference data

Symbol Parameter Conditions Min Typ Max Unit

VDDD1 digital supply voltage 1 for JTAG I/O 3.0 3.3 3.6 V

VDDD2 digital supply voltage 2 for SSTL_2 I/O 2.3 2.5 2.7 V

VDDD3 digital supply voltage 3 for core 1.15 1.2 1.3 V

VDD supply voltage for high-speed

serial I/O and PVT 1.15 1.2 1.3 V

VDDA1 analog supply voltage 1 for serializer 1.15 1.2 1.3 V

VDDA2 analog supply voltage 2 for serializer 3.0 3.3 3.6 V

fclk(ref) reference clock frequency 99.97 100 100.03 MHz

Tamb ambient temp era t ure operating

commercial 0 - +70 C

industrial 40 - +85 C

Product data sheet Rev. 6 — 27 June 2011 3 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

4. Ordering information

[1] PX1011B-EL1/Q900 is AEC-Q100 compliant. Contact i2c.support@nxp.com for PPAP.

5. Marking

[1] Industrial temperature range.

Table 2. Ordering information

Type number Solder process Package

Name Description Version

PX1011B-EL1/G Pb-free (SnAgCu

solder ball compound) LFBGA81 plastic low profile fine-pitch ball grid array

package; 81 balls; body 9  9  1.05 mm SOT643-1

PX1011B-EL1/N SnPb solder ball

compound LFBGA81 plastic low profile fine-pitch ball gri d arra y

package; 81 balls; body 9  9  1.05 mm SOT643-1

PX1011BI-EL1/G Pb-free (SnAgCu

solder ball compound) LFBGA81 plastic low profile fine-pitch ball grid array

package; 81 balls; body 9  9  1.05 mm SOT643-1

PX1011B-EL1/Q900[1] Pb-free (SnAgCu

solder ball compound) LFBGA81 plastic low profile fine-pitch ball grid array

package; 81 balls; body 9  9  1.05 mm SOT643-1

Table 3. Leaded package marking

Line Marking Description

A PX1011B-EL1/N full basic type number

B xxxxxxx diffusion lot number

C 2PNyyww manufacturing code:

2 = diffusion site

P = assembly site

N = leaded

yy = year code

ww = week code

Table 4. Lead-free package marking

Line Marking Description

A PX1011B-EL1/G

PX1011BI-EL1/G[1]

PX1011B-EL1/Q[1]

full basic type number

B xxxxxxx diffusion lot number

C 2PGyyww manufacturing code:

2 = diffusion site

P = assembly site

G = lead-free

yy = year code

ww = week code

Product data sheet Rev. 6 — 27 June 2011 4 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

6. Block diagram

Fig 1. Block diagram

002aac211

Ln_TxData0

TX I/O REFCLK I/O

REFCLK_P

PCI Express PHY

PCI Express MAC

Ln_TxData1

RESET_N

RXDATA[7:0]

TXDATA[7:0]

TXCLK RXCLK

8b/10b

ENCODE

10b/8b

DECODE

REFCLK_NTX_P TX_N

RX I/O

RX_P

bit stream at 2.5 Gbit/s

RX_N

ELASTIC

BUFFER

K28.5

DETECTION

CLOCK RECOVERY

CIRCUIT PLL

CLK

GENERATOR

250 MHz

clock

PARALLEL

SERIAL SERIAL

PARALLEL

DATA

RECOVERY

CIRCUIT

Product data sheet Rev. 6 — 27 June 2011 5 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

7. Pinning information

7.1 Pinning

Fig 2. Pin configuration for LFBGA81

002aad017

Transparent top view

246 981357

ball A1

index area

PX1011B-EL1/G

PX1011B-EL1/N

PX1011BI-EL1/G

PX1011B-EL1/Q900

Transparent top view.

Fig 3. Ball mapping

002aad018

VSS RXIDLE RXDATA6 RXDATA4 RXDATA3 RXDATA1 RXDATAK RXCLK RXSTATUS0

23456789

BREFCLK_P VSS RXDATA7 RXDATA5 VSS RXDATA2 RXDATA0 VSS RXSTATUS1

CREFCLK_N VSS VDDD2 VSS VDDD2 VSS VDDD2 RXVALID RXSTATUS2

DVSS VSS VDD VDDA2 VDDA1 PVT VSS PHYSTATUS TXDATA0

ERX_P VSS VDDD1 TMS VDDD1 VDDD3 VDDD2 VSS TXDATA1

FRX_N VSS TCK TRST_N VDDD3 VDDD3 VSS TXDATA3 TXDATA2

GVSS VSS TDI VSS VDDD2 VSS VDDD2 TXDATA5 TXDATA4

HTX_P VSS TDO TXIDLE VSS PWRDWN0 RXDET_

LOOPB VSS TXDATA6

JTX_N VREFS RESET_N RXPOL TXCOMP PWRDWN1 TXDATAK TXCLK TXDATA7

Product data sheet Rev. 6 — 27 June 2011 6 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

7.2 Pin description

The PHY input and output pins are described in Table 5 to Table 12. Note that input and

output is defined from the perspective of the PHY. Thus a signal on a pin described as an

output is driven by the PHY a nd a sign al on a pin described as an input is received by the

PHY. A basic description of each pin is provided.

Table 5. PCI Express serial data lines

Symbol Pin Type Signaling Description

RX_P E1 input PCIe I/O differential input receive pair with 50 

on-chip termination

RX_N F1 input PCIe I/O

TX_P H1 output PCIe I/O differential output transmit pair with

50  on-chip termination

TX_N J1 output PCIe I/O

Table 6. PXPIPE interface transmit dat a signals

Symbol Pin Type Signaling Description

TXDATA[7:0] J9, H9, G8, G9,

F8, F9, E9, D9 input SSTL_2 8-bit transmit data input from the MAC

to the PHY

TXDATAK J7 input SSTL_2 selection input for the symbols of

transmit data; LOW = data byte;

HIGH = control byte

Table 7. PXPIPE interface receive data signals

Symbol Pin Type Signaling Description

RXDATA[7:0] B3 , A3, B4, A4,

A5, B6, A6, B7 output SSTL_2 8-bit receive data output from the PHY

to the MAC

RXDATAK A7 output SSTL_2 selection output for the symbols of

receive data; LOW = data byte;

HIGH = control byte

Table 8. PXPIPE interface command signals

Symbol Pin Type Signaling Description

RXDET_ LOOPB H7 input SSTL_2 used to tell the PHY to begin a receiver

detection operation or to begin loopback;

LOW = reset state

TXIDLE H4 input SSTL_2 forces TX output to electrical idle. TXIDLE

should be asserted while in power states P0s

and P1.

TXCOMP J5 input SSTL_2 used when transmitting the complia nce

pattern; HIGH-level sets the running disparity

to negative

RXPOL J4 input SSTL_2 signals the PHY to perform a polarity inversion

on the receive data; LOW = PHY does no

polarity inversion; HIGH = PHY does polarity

inversion

RESET_N J3 input SSTL_2 PHY reset input; active LOW

PWRDWN0 H6 input SSTL_2 transceiver power-up and power-down inputs

(see Table 13); 0x2 = reset st ate

PWRDWN1 J6 input SSTL_2

Product data sheet Rev. 6 — 27 June 2011 7 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

Table 9. PXPIPE interface status signals

Symbol Pin Type Signaling Description

RXVALID C8 output SSTL_2 indicates symbol lock and valid data on

RX_DATA and RX_DATAK

PHYSTA TUS D8 output SSTL_2 used to communicate completion of several PHY

functions including power management state

transitions and receiver detection

RXIDLE A2 output SSTL_2 indicates receiver detection of an ele ctrical idle;

this is an asynchronous signal

RXSTATUS0 A9 output S STL_2 encodes receiver status and error codes for the

received data stream and receiver detection (see

Table 15)

RXSTATUS1 B9 output SSTL_2

RXSTATUS2 C9 output SSTL_2

Table 10. Clock and refer ence signals

Symbol Pin Type Signaling Description

TXCLK J8 input SSTL_2 source synchronous 250 MHz transmit clock

input from MAC. All input data and signals to the

PHY are synchronized to this clock.

RXCLK A8 output SSTL_2 source synchronous 250 MHz clock output for

received data and status signals bound for the

MAC.

REFCLK_P B1 input P CIe I/O 100 MHz reference clock input. This is the

spread spectrum source clock for PCI Express.

Differential pair input with 50  on-chip

termination.

REFCLK_N C1 input PCIe I/O

PVT D6 - analog I/O input or output to create a compensation signal

internally that will adjust the I/O pads

characteristics as PVT drifts. Connect to VDD

through a 49.9  resistor.

VREFS J2 input reference voltage input for SSTL_2 class I

signaling. Connect to 1.25 V.

Table 11. 3.3 V JTAG signals

Symbol Pin Type Signaling Description

TMS E4 input 3.3 V CMOS test mode select input

TRST_N F4 input 3.3 V CMOS test reset input for the JTAG interface;

active LOW

TCK F3 input 3.3 V CMOS test clock input for the JTAG interface

TDI G3 input 3.3 V CMOS test data input

TDO H3 output 3.3 V CMOS test data output

Product data sheet Rev. 6 — 27 June 2011 8 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

8. Functional description

The main function of the PHY is to convert digital data into electrical signals and vice

versa. The PCI Express PHY handles the low level PCI Express protocol and signaling.

The PX1011B PCI Express PHY consists of the Physical Coding Sub-layer (PCS), a

Serializer and De-serializer (SerDes) and a set of I/Os (pads). The PCI Express PHY

handles the low level PCI Express protocol and signaling. This includes features such as

Clock and Data Recover y (CDR), data serializatio n and de-serialization, 8b/10b encodin g,

analog buffers, elastic buffer and receiver detection.

The PXPIPE interface between the MAC and PX1011B is a superset of the PHY Interface

for the PCI Express (PIPE) specification. The following feature have been added:

•Source synchronous clocks for RX and TX data to simplify timing closure.

The 8-bit data width PXPIPE interface operates at 250 MHz with SSTL_2 class I

signaling. PX1011B does not integrate SSTL_2 termination resistors inside the IC.

The PCI Express link consists of a differential input pair and a differential output p air. The

data rate of these signals is 2.5 Gbit/s.

8.1 Receiving data

Incoming data enters the chip at the RX interface. The receiver converts these signals

from small amplitude differential signals into rail-to-rail digital signals. The carrier detect

circuit detects whether data is present on the line and passes this information through to

the SerDes and PCS.

If a valid stream of data is present the Clock and Data Recovery unit (CDR) first recovers

the clock from the data and then uses this cl o ck for re -timing the d ata (i.e., recovering the

data).

Table 12. PCI Express PHY power supplies

Symbol Pin Type Signaling Description

VDDA1 D5 power 1.2 V analog power supply for serializ er and

de-serializer

VDDA2 D4 power 3.3 V analog power suppl y for serializer and

de-serializer

VDDD1 E3, E5 power 3.3 V power supply for JTAG I/O

VDDD2 C3, C5, C7, E7,

G5, G7 power 2.5 V pow er su pp l y for SSTL_ 2 I/ O

VDDD3 E6, F5, F6 power 1.2 V power supply for core

VDD D3 power 1.2 V power supply for high-speed serial

PCI Express I/O pads and PVT

VSS A1, B2, B5, B8,

C2, C4, C6, D1,

D2, D7, E2, E8,

F2, F7, G1, G2,

G4, G6, H2, H5,

ground ground

Product data sheet Rev. 6 — 27 June 2011 9 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

The de-serializer or Serial-to-Parallel converter (S2P) de-serializes this data into 10-bits

parallel data.

Since the S2P has no knowledge about the data, the word alignment is still random. This

is fixed in the digital domain by the PCS block. It first detects a 10-bit comma character

(K28.5) from the random data stream and aligns the bits. Then it converts the 10-bit raw

data into 8-bit words using 8b/10b decoding. An elastic buffer and FIFO brings the

resulting data to the right clock domain, which is the RX source synchronous clock

domain.

8.2 Transmitting data

When the PHY transmits, it receives 8-bit data from the MAC. This data is encoded using

an 8b/10b encoding algorithm. The 2 bits overhead of the 8b/10b encoding ensures the

serial data will be DC-balanced and has a sufficient 0-to-1 and 1-to-0 transition density for

clock recovery at the receiver si de .

The serializer or Parallel-to-Serial converter (P2S) serializes the 10 bits data into serial

data streams. These data streams are latched into the transmitter, where they are

converted into small amplitude differential signals. The transmitter has built-in

de-emphasis for a larger eye opening at the receiver side.

The PLL has a sufficiently high bandwidth to handle a 100 MHz reference clock with a

30 kHz to 33 kHz spread spectrum .

8.3 Clocking

There are three clock signals used by the PX1011B:

•REFCLK is a 100 MHz external reference clock that the PHY uses to generate the

250 MHz data clock and the internal bi t rate clock. This clock may have

30 kHz to 33 kHz spread spectrum modulation.

•TXCLK is a reference clock that the PHY uses to clock the TXDATA and command.

This source synchronous clock is provided by the MAC. The PHY expects that the

rising edge of TXCLK is center ed to the data . The TXCLK has to be synchronous with

RXCLK.

•RXCLK is a source synchronous clock provided by the PHY. The RXDATA and status

signals are synchronous to this clo ck. The PHY aligns the rising edge of RXCLK to the

center of the data. RXCLK may be used by the MAC to clock its internal logic.

8.4 Reset

The PHY must be held in reset until power and REFCLK are stable. It takes the PHY

64 s maximum to stabilize its internal clocks. RXCLK frequency is the same as REFCLK

frequency, 100 MHz, during this time. The PHY de-asserts PHYSTATUS when internal

clocks are stable.

The PIPE specification recommends that while RESET_N is asserted, the MAC should

have RXDET_LOOPB de-asserted, TXIDLE asserted, TXCOMP de-asserted, RXPOL

de-asserted and power state P1. The MAC can also assert a reset if it receives a physical

layer reset packet.

Product data sheet Rev. 6 — 27 June 2011 10 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

8.5 Power management

The power managemen t signals a llow th e PHY to manag e p ower co nsump tion. Th e PHY

meets all timing constraints provided in the PCI Express base specification regarding

clock recovery and link training for the various power states.

Four power states are defined: P0, P0s, P1 and P2. P0 state is the normal operational

state for the PHY. When directed from P0 to a lower power state, the PHY can

immediately take whatever power saving measures are appropriate.

In states P0, P0s and P1, the PHY keeps internal clocks operational. For all state

transitions between these three states, the PHY indicates successful transition into the

designated power state by a single cycle assertion of PHYSTATUS. For all power state

transitions, the MAC must not begin any operational sequences or further power state

transitions until the PHY has indicated that the initial state transition is completed. T XIDLE

should be asserted while in power states P0s and P1.

•P0 state: All internal clo cks in the PHY are op erational. P0 is the only st ate where the

PHY transmits and receives PCI Express signaling. P0 is the appropriate PHY power

management state for most states in the Link Training and Status State Machine

(LTSSM). Exceptions are listed for each lower power PHY state (P0s, P1 and P2).

•P0s state: The MAC will move the PHY to this state only when the transmit channel is

idle.

While the PHY is in either P0 or P0s power states, if the re ceiver is detecti ng an electr ical

idle, the receiver portion of the PHY can take appropriate power saving measures. Note

that the PHY is capable of obtaining bit and symbol lock within the PHY-specified time

(N_FTS with or without common clock) upon resumption of signaling on the receive

channel. This requirem ent only a pp lies if the re ce ive r had p revio usly been bit an d symbo l

locked while in P0 or P0s states.

•P1 state: Selected internal clocks in the PHY are turned off. The MAC will move the

PHY to this state only when both transmit and receive channels are idle. The PHY

indicates a successful entry into P1 (by asserting PHYSTATUS). P1 should be used

for the disabled state, all detect states, and L1.idle state of the Link Training and

Status State Machine (LTSSM).

•P2 state: PHY will enter P1 instead.

Fig 4. Reset

002aac172

RXCLK

RESET_N

PHYSTATUS

100 MHz 250 MHz

Product data sheet Rev. 6 — 27 June 2011 11 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

[1] TXIDLE = 0

[2] TXIDLE = 1

8.6 Receiver detect

When the PHY is in the P1 state, it can be instructed to perform a receiver detection

operation to determine if th ere is a re ce iver at the other end of the link. Basic operation of

receiver detection is that the MAC requests the PHY to do a receiver detect sequence by

asserting RXDET_LOOPB. When the PHY has completed the receiver detect sequence,

it drives the RXSTATUS signals to the value of 011b if a receiver is present, an d to 000b if

there is no receiver. Then the PHY will assert PHYSTATUS to indicate the completion of

receiver detect operation. The MAC uses the rising edge of PHYSTATUS to sample the

RXSTATUS signals and then de-asserts RXDET_LOOPB. A few cycles after the

RXDET_LOOPB de-asserts, the PHYSTATUS is also de-asserted.

8.7 Loopback

The PHY supports an internal loopback from the PCI Express receiver to the transmitter

with the following characteristics.

The PHY retransmits each 10-bit data and control symbol exactly as received, without

applying scrambling or descrambling or disparity corrections, with the following rules:

•If a received 10-bit symbol is determined to be an invalid 10-bit code (i.e., no legal

translation to a control or data value possible), the PHY still retransmits the symbol

exactly as it was receive d.

•If a SKP ordered set retransmission requires adding a SKP symbol to accommodate

timing tolerance correction, any disparity can be chosen for the SKP symbol.

Table 13. Summary of power management state

PWRDWN[1:0] Power management state Transmitter Receiver TX PLL RXCLK RX PLL/CDR

00b P0, normal operation on[1] on on on on

01b P0s, power saving state idle[2] idle on on on

10b P1, lower power state idle[2] idle on on off

11b illegal, PHY will enter P1 - - - - -

Fig 5. Receiver detect - receive r present

002aac173

RXCLK

000b

10b

011b 000b

PHYSTATUS

RXSTATUS2,

RXSTATUS1,

RXSTATUS0

TXCLK

RXDET_LOOPB

PWRDWN1,

PWRDWN0

Product data sheet Rev. 6 — 27 June 2011 12 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

•The PHY continues to provide the received data on the PXPIPE interface, behaving

exactly like norma l data receptio n.

•The PHY transitions from normal transmission of data from the PXPIPE interface to

looping back the received data at a symbol boundary.

The PHY begins to loopback data when the MAC asserts RXDET_LOOPB while doing

normal data transmission. The PHY stops transmitting data from the PXPIPE interface,

and begins to loopback received symbols. While doing loopback, the PHY continu es to

present received data on the PXPIPE interface.

The PHY stops looping back received data when the MAC de-asserts RXDET_LOOPB.

Transmission of data on the par allel interface begins immediately.

The timing diagram of Figure 6 shows example timing for beginning loopback. In this

example, the receiver is receiving a repeating stream of bytes, Rx-a through Rx- z.

Similarly, the MAC is causing the PHY to transmit a repeating stream of bytes Tx-a

through Tx-z. When the MAC asserts RXDET_LOOPB to the PHY, the PHY begins to

loopback the received data to the differential TX_P and TX_N lines.

The timing diagram of Figure 7 shows an example of switching from loopback mode to

normal mode. As soon as the MAC detects an electrical idle ordered-set, the MAC

de-asserts RXDET_LOOPB, asserts TXIDLE and changes the POWERDOWN signals to

state P1.

Fig 6. Loopback start

RXDET_LOOPB

002aac174

RXCLK

TXCLK

Rx-c Rx-d Rx-e Rx-f Rx-g

Tx-m Tx-n Tx-o Tx-p Tx-q

Tx-m Tx-n Rx-e

TX_P, TX_N

RXDATA[7:0]

TXDATA[7:0]

Product data sheet Rev. 6 — 27 June 2011 13 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

8.8 Electrical idle

The PCI Express Base Specification requires that devices send an Electrical Idle

ordered-set before TX goes to the electrical idle state.

The timing diagram of Figure 8 shows an example of timing for entering electrical idle.

Fig 7. Loopback end

RXDET_LOOPB

001aac785

RXCLK

RXDATA[7:0]

TXIDLE

TX_P, TX_N

TXCLK

COM IDL Junk

Looped back RX data Junk

includes electrical idle

ordered set

Fig 8. Electrical Idle

TXIDLE

002aac175

TXCLK

TXDATA[7:0]

TXDATAK

ScZero COM IDL

active (ends with Electrical Idle ordered-set)TX_P, TX_N

Product data sheet Rev. 6 — 27 June 2011 14 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

Table 14 summarizes the function of some PXPIPE control signals.

8.9 Clock tolerance compensation

The PHY receiver contains an elastic buffer used to compensate for differences in

frequencies between bit rates at the two ends of a link. The elastic buffer is capable of

holding at least seven symbols to handle worst case differences (600 ppm) in frequency

and worst case intervals between SKP ordered-sets. The PHY is responsible for inserting

or removing SKP symbols in the received data stream to avoid elastic buffer overflow or

underflow. The PHY monitors the receive data stream, and when a Skip ordered-set is

received, the PHY can add or remove one SKP symbol from each SKP ordered-set as

appropriate to manage its elastic buffer. Whenever a SKP symbol is added or removed,

the PHY will signal this to the MAC using the RXSTATUS signals. These signals have a

non-zero value for one clock cycle and indicate whether a SKP symbol was added or

removed from the received SKP ordered-set. RXSTATUS should be asserted during the

clock cycle when the COM symbol of the SKP ordered-set is moved across the parallel

interface. If the removal of a SKP symbol causes no SKP symbols to be transferred

across the parallel interface, then RXSTATUS is asserted at the same time that the COM

symbol (that was part of the received skip ordered-set) is transmitted across the parallel

interface.

Figure 9 shows a sequence where the PHY inserted a SKP symbol in the data stream.

Figure 10 shows a sequence where the PHY removed a SKP symbol from a SKP

ordered-set.

Table 14. Control signals function summary

PWRDWN[1:0] RXDET_LOOPB TXIDLE Function description

P0: 00b 0 0 normal operation

0 1 transmitter in idle

1 0 loopback mode

1 1 illegal

P0s: 01b X 0 illegal

1 transmitter in idle

P1: 10b X 0 illegal

0 1 transmitter in idle

1 1 receiver detect

Fig 9. Clock correction - insert a SKP

001aac779

RXCLK

active COM SKP

000b 001b 000b

SKP active

RXVALID

RXDATA[7:0]

RXSTATUS2,

RXSTATUS1,

RXSTATUS0

Product data sheet Rev. 6 — 27 June 2011 15 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

8.10 Error detection

The PHY is responsible for detecting receive errors of several types. These errors are

signaled to the MAC layer using the receiver status signals RXSTATUS.

Because of higher level error detection mechanisms (like CRC) built into the data link

layer of PCI Express, there is no need to specifically identify symbols with errors.

However, timing information about when the error occurred in the data stream is

important. When a receive error occurs, the appropriate error code is asserted for one

clock cycle at the po int close st to wher e the erro r actually occurred .

There are four error conditions that can be encod ed on the RXSTATUS signals. If more

than one error sh ould happen to occur on a received byte, the err ors are signaled with the

priority shown below.

1. 8b/10b decode err or

2. Elastic buffer overflow

3. Elastic buffer underflow

4. Disparity error

Fig 10. Clock correction - remove a SKP

002aac176

RXCLK

active COM SKP

000b 010b 000b

active

RXVALID

RXDATA[7:0]

RXSTATUS2,

RXSTATUS1,

RXSTATUS0

Table 15. Function table PXPIPE status interface signals

Operating mode Output pin

RXSTATUS2 RXSTATUS1 RXSTATUS0

Received data OK L L L

One SKP added L L H

One SKP removed L H L

Receiver detected L H H

8b/10b decode error H L L

Elastic buffer overflow H L H

Elastic buffer underflow H H L

Receive disparity error H H H

Product data sheet Rev. 6 — 27 June 2011 16 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

8.10.1 8b/10b decode errors

For a detected 8b/10b decode error, the PHY places an EDB (EnD Bad) symbol in the

data str eam in place of the bad byte, an d encodes RXSTATUS with a decode error during

the clock cycle when the effected byte is transferred across the parallel interface. In

Figure 11 the receiver is receiving a stream of bytes Rx-a through Rx-z, and byte Rx-c has

an 8b/10b decode error. In place of that byte, the PHY places an EDB on the parallel

interface, and sets RXSTATUS to the 8b/10b decode error code. Note that a byte that

cannot be decoded may also have bad disparity, but the 8b/10b error has precedence.

8.10.2 Disparity errors

For a detected disparity error, the PHY asserts RXSTATUS with the disparity error co de

during the clock cycle when the effected byte is transferred across the parallel interface. In

Figure 12 the rece iver de tected a disp ar ity error on Rx- c dat a byte, and ind icates this with

the assertion of RXSTATUS.

8.10.3 Elastic buffer

For elastic buf fer errors, an un derflow is signaled during the clock cycle when the spurious

symbol is moved across the parallel interface. The symbol moved across the interface is

the EDB symbol. In the timing diagram Figure 13, the PHY is receiving a repeating set of

symbols Rx-a through Rx-z. The elastic buffer underflow causing the EDB symbol to be

inserted betw ee n th e Rx- c and Rx-d sy mbo ls. The PHY drives RXSTATUS to indicate

buffer underflow during the clock cycle when the EDB is presented on the parallel

interface.

Fig 11. 8b/10b decode errors

001aac780

RXCLK

Rx-a Rx-b EDB

000b 100b 000b

Rx-d Rx-e

RXVALID

RXDATA[7:0]

RXSTATUS2,

RXSTATUS1,

RXSTATUS0

Fig 12. Disparity errors

001aac781

RXCLK

Rx-a Rx-b Rx-c

000b 111b 000b

Rx-d Rx-e

RXVALID

RXDATA[7:0]

RXSTATUS2,

RXSTATUS1,

RXSTATUS0

Product data sheet Rev. 6 — 27 June 2011 17 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

For an elastic buffer overflow, the overflow is signaled during the clock cycle where the

dropped symbol would have appeared in the data stream. In the timing diagram of

Figure 14, the PHY is receiving a r epeating set of symbols Rx-a thr ough Rx-z. Th e ela stic

buffer ove rflows causing the symbol Rx-d to be discarded. The PHY drives RXSTATUS to

indicate buffer overflow during the clock cycle when Rx-d would have appeared on the

parallel interface.

8.11 Polarity inversion

To support lane polarity inversion, the PHY inverts received data when RXPOL is

asserted. The PHY be gin s da ta inversion with in 20 symb o ls after RXPOL is asse rt ed .

Fig 13. E l as tic buf fer underflow

Fig 14. E l as tic buf fer ov erflow

001aac782

RXCLK

Rx-a Rx-b Rx-c

000b 110b 000b

EDB Rx-d

RXVALID

RXDATA[7:0]

RXSTATUS2,

RXSTATUS1,

RXSTATUS0

001aac783

RXCLK

Rx-a Rx-b Rx-c

000b 101b 000b

Rx-e Rx-f

RXVALID

RXDATA[7:0]

RXSTATUS2,

RXSTATUS1,

RXSTATUS0

Fig 15. Polarity inversion

001aac786

RXCLK

D21.5 D21.5 D10.2 D10.2

RXPOL

RXVALID

RXDATA[7:0]

Product data sheet Rev. 6 — 27 June 2011 18 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

8.12 Setting negative disparity

To set the running disparity to negative, the MAC asserts TXCOMP for one clock cycle

that matches with the data that is to be transmitted with negative dispa rity.

8.13 JTAG boundary scan interface

Joint Test Action Group (JTAG) or IEEE 1149.1 is a standard, specifying how to control

and monitor the pin s of co mp lia nt de vic es on a printed-circuit board. This standard is

commonly known as ‘JTAG Boundary Scan’.

This stand ard defines a 5-pin serial protocol for accessing and controlling the signal levels

on the pins of a digit al circuit, an d has some extensions for testing the internal circuitry on

the chip itself, which is beyond the scope of this data sheet.

Access to the JTAG interface is provided to the customer for the sole purpose of using

boundary scan for interconnect test verification between other compliant devices that ma y

reside on the board. Using JTAG for purposes other than boundary scan may produce

undesired effects.

The JTAG interface is a 3.3 V CMOS signaling. JTAG TRST_N must be asserted LOW for

normal device operation. If JTAG is not planned to be used, it is recommended to

pull down TRST_N to VSS.

Fig 16. Setting negati ve dis parity

002aac177

TXCLK

data K28.5 K28.5

valid data K28.5−K28.5+

K28.5 K28.5

TX_P, TX_N

TXCOMP

TXDATA[7:0]

byte transmitted

with negative disparity

Product data sheet Rev. 6 — 27 June 2011 19 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

9. Limiting values

[1] Human Body Model: ANSI/EOS/ESD-S5.1-1994, standard for ESD sensitivity testing, Human Body Model -

Component level; Electrostatic Discharge Association, Rome, NY, USA.

[2] Charged Device Model: ANSI/EOS/ESD-S5.3.1-1999, standard for ESD sensitivity testing, Charged Device

Model - component level; Electrostatic Discharge Association, Rome, NY, USA.

10. Thermal characteristics

[1] Significant variations can be expected due to system variables, such as adjacent devices, or actual air flow

across the package.

Table 16. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol Parameter Conditions Min Max Unit

VDDD1 digital supply voltage 1 for JTAG I/O 0.5 +4.6 V

VDDD2 digital supply voltage 2 for SSTL_2 I/O 0.5 +3.75 V

VDDD3 digital supply voltage 3 for core 0.5 +1.7 V

VDD supply voltage for high-speed

serial I/O and PVT 0.5 +1.7 V

VDDA1 analog supply voltage 1 for serial izer 0.5 +1.7 V

VDDA2 analog supply voltage 2 for serial izer 0.5 +4.6 V

VESD electrostatic discharge voltage HBM [1] - 2000 V

CDM [2] -500V

Tstg storage temperature 55 +150 C

Tjjunction temperature 55 +125 C

Tamb ambient temperature operating

commercial 0 +70 C

industrial 40 +85 C

Table 17. Thermal characteristics

Symbol Parameter Conditions Typ Unit

Rth(j-a) thermal resistance from junction to ambient in free air [1] 44 K/W

Rth(j-c) thermal resistance from junction to case in free air [1] 10 K/W

Product data sheet Rev. 6 — 27 June 2011 20 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

11. Characteristics

Table 18 . PCI Express PHY characteristics

Symbol Parameter Conditions Min Typ Max Unit

Supplies

VDDD1 digital supply voltage 1 for JTAG I/O 3.0 3.3 3.6 V

VDDD2 digital supply voltage 2 for SSTL_2 I/O 2.3 2.5 2.7 V

VDDD3 digital supply voltage 3 for core 1.15 1.2 1.3 V

VDD supply voltage for high-speed serial I/O

and PVT 1.15 1.2 1.3 V

VDDA1 analog supply voltage 1 for serializer 1.15 1.2 1.3 V

VDDA2 analog supply voltage 2 for serializer 3.0 3.3 3.6 V

IDDD1 digital supply current 1 for JTAG I/O 0.1 1 2 mA

IDDD2 digital supply current 2 for SSTL_2; no load - 24 35 mA

IDDD3 digital supply current 3 for core 5 10 15 mA

IDD supply current for high-speed serial I/O

and PVT 15 20 30 mA

IDDA1 analog supply current 1 for serializer 15 20 31 mA

IDDA2 analog supply current 2 for serializer 7 10 15 mA

Receiver

UI unit interval 399.88 400 400.12 ps

VRX_DIFFp-p differential input peak-to-peak voltage 0.205 - 1 .2 V

tRX_MAX_JITTER maximum receiver jitter time - - 0.6 UI

VIDLE_DET_DIFFp-p electrical idle detect threshold 65 - 205 mV

ZRX_DC DC input impedance 40 50 60 

ZRX_HIGH_IMP_DC powered-down DC input impedance 200 - - k

RLRX_DIFF differential return loss 15 - - dB

RLRX_CM common mode return loss 6 - - dB

tlock(CDR)(ref) CDR lock time (reference loo p) - - 50 s

tlock(CDR)(data) CDR lock time (data loop) - - 2.5 s

tRX_latency receiver latency 1 clock cycle is 4 ns 6 - 13 clock

cycle

Referenc e clock

fclk(ref) reference clock frequency 99.97 100 100.03 MHz

fmod(clk)(ref) reference clock modulation frequency

range 0.5 - +0 %

fmod(clk)(ref) reference clock modulation frequency 30 - 33 kHz

VIH(se)REFCLK REFCLK single-end HIGH-level input

voltage - 0.7 1.15 V

VIL(se)REFCLK REFCLK single-end LOW-level input

voltage 0.3 0 - V

ZC-DC clock source DC impedance 40 50 6 0 

Product data sheet Rev. 6 — 27 June 2011 21 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

dV/dt rate of change of voltage at rising edge;

measured from 150 mV

to +150 mV on the

differential waveform;

Figure 17

0.6 - 4.0 V/ns

at falling edge;

measured from +150 mV

to 150 mV on the

differential waveform;

Figure 17

0.6 - 4.0 V/ns

VIH differential input HIGH voltage +150 - - mV

VIL differential input LOW voltage - - 150 mV

REFCLK duty cycle on pin REFCLK on pin REFCLK_N and

pin REFCLK_P 40 - 60 %

Transmitter

UI unit interval 399.88 400 400.12 ps

VTX_DIFFp-p differential peak-to-peak output

voltage 0.8 - 1.2 V

tTX_EYE_m-mJITTER maximum time between the jitter

median and maximum deviation from

the median

-3550ps

tTX_JITTER_MAX maximum transmitter jitter time - 60 100 ps

VTX_DE_RATIO de-emphasized differential output

voltage ratio 3.0 - 4.0 dB

tTX_RISE D+/D TX output rise time 50 75 - ps

tTX_FALL D+/D TX output fall time 50 75 - ps

VTX_CM_ACp RMS AC peak common mode output

voltage --20mV

VCM_DC_ACT_IDLE absolute delta of DC common mode

voltage during L0 and electrical idle 0- 100mV

VCM_DC_LINE absolute del ta of DC common mode

voltage between D+ and D

0- 25mV

VTX_CM_DC TX DC common mode voltage 0 - 3.6 V

ITX_SHORT TX short-circuit current limit - 20 90 mA

RLTX_DIFF differential return loss 12 - - dB

RLTX_CM common mode return loss 6 - - dB

ZTX_DC transmitter DC impedance 40 50 6 0 

CTX AC coupling capacitor 75 100 200 nF

tlock(PLL) PLL lock time - - 50 s

tTX_latency transmitter latency 1 clock cycle is 4 ns 4 - 9 clock

cycle

tP0s_exit_latency P0s state exit latency - - 2.5 s

tP1_exit_latency P1 state exit latency - - 64 s

tRESET-PHYSTATUS RESET_N HIGH to PHYST A TUS LOW

time --64s

Table 18 . PCI Express PHY characteristics …continued

Symbol Parameter Conditions Min Typ Max Unit

Product data sheet Rev. 6 — 27 June 2011 22 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

[1] Reference voltage for SSTL_2 class I I/O.

Fig 17. Differential measurement points

dV/dt

at rising edge dV/dt

at falling edge

002aad694

= +150 mV

0.0 V

= −150 mV

REFCLK+

minus

REFCLK−

Table 19. PXPIPE characteristics

Symbol Parameter Conditions Min Typ Max Unit

fRXCLK RXCLK frequency 249.925 250 250.075 MHz

fTXCLK TXCLK frequency 249.925 250 250.075 MHz

VVREFS voltage on pin VREFS [1] 1.13 1.25 1.38 V

VOH(SSTL2) SSTL_2 HIGH-level output voltage AC VTT +0.61 - - V

VOL(SSTL2) SSTL_2 LOW-level output voltage AC - - VTT 0.61 V

VIH(SSTL2) SSTL_2 HIGH-level input voltage AC Vref +0.31 - - V

VIL(SSTL2) SSTL_2 LOW-level input voltage AC - - Vref 0.31 V

Input signals; measured with respect to TXCLK

tsu(TX)(PXPIPE) set-up time of PXPIPE input signal see Figure 18 500 - - ps

th(TX)(PXPIPE) hold time of PXPIPE input signal see Figure 18 500 - - ps

Output signals; measured with resp ect to RXCLK

tsu(RX)(PXPIPE) set-up time of PXPIPE output signal see Figure 18 1500 - - ps

th(RX)(PXPIPE) hold time of PXPIPE output signal see Figure 18 1500 - - ps

Fig 18. Definition of PXPIPE timing

PXPIPE

INPUT

TXCLK

PXPIPE

OUTPUT

RXCLK

th(RX)(PXPIPE)

tsu(RX)(PXPIPE)

th(TX)(PXPIPE)

tsu(TX)(PXPIPE)

002aac316

Product data sheet Rev. 6 — 27 June 2011 23 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

Tamb = 25 C; nominal VDD

Fig 19. Transition eye

Tamb = 25 C; nominal VDD

Fig 20. Non transition eye

−0.2

−0.6

−0.5

−0.4

−0.3

−0.2

−0.1

0.1

0.2

0.3

0.4

0.5

0.6

−0.1 0

differential

signal

(V)

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

unit intervals

1.1 1.2

001aac789

−0.2

−0.6

−0.5

−0.4

−0.3

−0.2

−0.1

0.1

0.2

0.3

0.4

0.5

0.6

−0.1 0

differential

signal

(V)

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

unit intervals

1.1 1.2

001aac790

Product data sheet Rev. 6 — 27 June 2011 24 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

12. Package outline

Fig 21. Package outline SOT643-1 (LFBGA81)

ball A1

index area

0.8

A1bA2

UNIT Dye

REFERENCES

OUTLINE

VERSION EUROPEAN

PROJECTION ISSUE DATE

00-11-01

02-03-28

IEC JEDEC JEITA

mm 1.6 0.4

0.3 1.20

0.95 9.1

8.9

9.1

8.9

0.5

0.4 0.12 0.1

6.4

DIMENSIONS (mm are the original dimensions)

SOT643-1 MO-205 - - -

0.15

0.08

0 5 10 mm

scale

SOT643-1

LFBGA81: plastic low profile fine-pitch ball grid array package; 81 balls; body 9 x 9 x 1.05 mm

max.

AA2A1

detail X

y1C

246 981357

ball A1

index area

∅ vM

∅ wM

Product data sheet Rev. 6 — 27 June 2011 25 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

13. Soldering of SMD packages

This text provides a very brief insight into a complex technology. A more in-depth account

of soldering ICs can be found in Application Note AN10365 “Surface mount reflow

soldering description”.

13.1 Introduction to soldering

Soldering is one of the most common methods through which packages are attached to

Printed Circuit Boards (PCBs), to form electrical circuits. The soldered joint provides both

the mechanical and the electrical connection. There is no single soldering method that is

ideal for all IC packages. Wave soldering is often preferred when through-hole and

Surface Mount Devices (SMDs) are mixed on one printed wiring board; however, it is not

suitable for fine pitch SMDs. Reflow soldering is ideal for the small pitches and high

densities that come with increased miniaturization.

13.2 Wave and reflow soldering

W ave soldering is a joinin g technology in which the joint s are made by solder coming from

a standing wave of liquid solder. The wave soldering process is suitable for th e following:

•Through-hole components

•Leaded or leadless SMDs, which are glued to the surface of the printed circuit board

Not all SMDs can be wave soldered. Packages with solder balls, and some leadless

packages which have solder lands underneath the body, cannot be wave soldered. Also,

leaded SMDs with leads having a pitch smaller than ~0.6 mm cannot be wave soldered,

due to an increased probability of bridging.

The reflow soldering process involves applying solder paste to a board, followed by

component placement and exposure to a temperature profile. Leaded packages,

packages with solder balls, and leadless packages are all reflow solderable.

Key characteristics in both wave and reflow soldering are:

•Board specifications, including the board finish, solder masks and vias

•Package footprints, including solder thieves and orientation

•The moisture sensitivity level of the packages

•Package placement

•Inspection and repair

•Lead-free soldering versus SnPb soldering

13.3 Wave soldering

Key characteristics in wave soldering are:

•Process issues, such as application of adhesive and flux, clinching of leads, board

transport, the solder wave parameters, and the time during which components are

exposed to the wave

•Solder bath specifications, including temperature and impurities

Product data sheet Rev. 6 — 27 June 2011 26 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

13.4 Reflow soldering

Key characteristics in reflow soldering are:

•Lead-free ve rsus SnPb soldering; note th at a lead-free reflow process usua lly leads to

higher minimum peak temperatures (see Figure 22) than a SnPb process, thus

reducing the process window

•Solder paste printing issues including smearing, release, and adjusting the process

window for a mix of large and small components on one board

•Reflow temperature profile; this profile includes preheat, reflow (in which the board is

heated to the peak temperature) and cooling down. It is imperative that the peak

temperature is high enoug h for the solder to make reliable solder joint s (a solder paste

characteristic). In addition, the peak temperature must be low enough that the

packages and/or boards are not damaged. The peak temperature of the package

depends on package thickness and volume and is classified in acco rdance with

Table 20 and 21

Moisture sensitivity precautions, as indicated on the packing, must be respected at all

times.

Studies have shown that small packages reach higher temperatures during reflow

soldering, see Figure 22.

Table 20. SnPb eutectic process (from J-STD-020C)

Package thickness (mm) Package reflow temperature (C)

Volume (mm3)

< 350  350

< 2.5 235 220

 2.5 220 220

Table 21. Lead-free process (from J-STD-020C)

Package thickness (mm) Package reflow temperature (C)

Volume (mm3)

< 350 350 to 2000 > 2000

< 1.6 260 260 260

1.6 to 2.5 260 250 245

> 2.5 250 245 245

Product data sheet Rev. 6 — 27 June 2011 27 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

For further information on temperature profiles, refer to Application Note AN10365

“Surface mount reflow soldering description”.

14. Appendix

14.1 Errata added 2009-09-01

The PX1011B (types PX1011B-EL1/G, PX1011BI-EL1/G, PX1011B-EL1/N and

PX1011B-EL1/Q900) is reported to sporadically produce communication failures in Intel

DX58S0-based systems in which the PCIe transmitter has full Active Power State

Management (ASPM) capability, and particularly when L0s mode is supported.

When the PCIe transmitter goes idle (enters L0s) for the purpose of power saving and

then returns to normal mode (exits L0s and enters L0), the PX1011B receiver PLL may

randomly fail to lock, preventing it from pr operly inte rpreting the da t a being transmitted on

the link. As a result the PX1011B may send symbols to the link device that it cannot

recognize.

This is a L0s exit failure which may prevent the system from recovering and could cause

the PCIe protocol to eventually fail and the link to go down. If this occurs, the PX1011B

stays in the exit failur e state indefinitely. The receiver can only be re-initiated by a pplying a

hard reset to the PHY, returning it to normal mode.

You are strongly advised to disable the L0s mode whenever the PX1011B is used.

MSL: Moisture Sensitivity Level

Fig 22. Temperature profiles for large and small components

001aac844

temperature

time

minimum peak temperature

= minimum soldering temperature

maximum peak temperature

= MSL limit, damage level

peak

temperature

Product data sheet Rev. 6 — 27 June 2011 28 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

15. Abbreviations

16. References

[1] PCI Express Base Specification — Rev. 1.0a - PCISIG

[2] PHY Interface for the PCI Express Architecture (PIPE) Specification Version

1.00 — Intel Corporation

Table 22. Abbreviations

Acronym Description

BER Bit Error Rate

BIST Built-In Self Test

CMOS Complementary Metal-Oxide Semiconductor

CRC Cyclic Redundancy Check

EMI ElectroMagnetic Interference

ESD ElectroStatic Discharge

FPGA Field Programmable Gate Array

LTSSM Link Training and S tatus State Machine

MAC Media Access Control

P2S Parallel to Serial

PCI Peripheral Component Interconnect

PCS Physica l Coding Sub-layer

PHY PHYsical layer

PLL Phase-Locked Loop

PIPE PHY Interface for the PCI Express

PVT Process Voltage Temperature

S2P Serial to Paralle l

SerDes Serializer and De-serializer

SKP SKiP

SSTL_2 Stub Series Terminated Logic for 2.5 Volts

Product data sheet Rev. 6 — 27 June 2011 29 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

17. Revision history

Table 23. Revision history

Document ID Release date Dat a sheet status Change notice Supersedes

PX1011B v.6 20110627 Product data sheet - PX1011B v.5

Modifications: •Section 1 “General description”, third paragraph: added last sentence

PX1011B v.5 20110418 Product data sheet - PX1011B v.4

Modifications: • Table 2 “Ordering information”:

–Added type number PX1011B-EL1/Q900

–Added Table note [1] and cross-reference at PX1011B-EL1/Q900

•Table 4 “Lead-free package marking”: added marki ng PX1011B-EL1/Q

•Figure 2 “Pin configuration for LFBGA81”: added type number PX1011B-EL1/Q900

•Table 18 “PCI Express PHY characteristics”:

–sub-section “Supplies”, IDD, supply current: Max value chan ged from “28 mA” to “30 mA”

–sub-section “Supplies”, IDDA1, an alog supply current 1: Max value changed from “28 mA” to

“31 mA”

–sub-section “Recei ver”, VRX_DIFFp-p, differential input peak-to-peak voltage: Min value changed

from “0.175 V” to “0.205 V”

–sub-section “Recei ver”, VIDLE_DET_DIFFp-p, electrical idle detect threshold: Max value changed

from “175 mV” to “205 mV”

•Section 14.1 “Errata added 2009-09-01”: added type number PX1011B-EL1/Q900 to first sentence

PX1011B v.4 20090904 Product data sheet - PX1011B v. 3

Modifications: •Section 14: Errata information adde d

PX1011B v.3 20081020 Product data sheet - PX1011B v. 2

Modifications: •Added type number PX1011B-EL1/N (affects Section 2.6 “Miscellaneous”, Table 2 “Ordering

information”, (new) Table 3 “Leaded package marking”, Figure 2 “Pin configuration for LFBGA81”)

PX1011B v.2 20080319 Product data sheet - PX1011B v. 1

PX1011B v.1 20080213 Objective data sheet - -

Product data sheet Rev. 6 — 27 June 2011 30 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

18. Legal information

18.1 Data sheet status

[1] Please consult the most recently issued document before initiating or completing a design.

[2] The term ‘short data sheet’ is explained in section “Definitions”.

[3] The product status of de vice(s) descr ibed in th is docume nt may have cha nged since this docume nt was publis hed and ma y dif fer in case of multiple devices. The latest product status

information is available on the Internet at URL http://www.nxp.com.

18.2 Definitions

Draft — The document is a draft version only. The content is still under

internal review and subject to formal approval, which may result in

modifications or additions. NXP Semiconductors does not give any

representations or warranties as to the accuracy or completeness of

information included herein and shall have no liab ility for the consequences of

use of such information.

Short data sheet — A short data sheet is an extract from a full data sheet

with the same product type number(s) and tit le. A short data sh eet is intended

for quick reference only and shou ld not be rel ied u pon to cont ain det ailed and

full information. For detailed and full information see the relevant full data

sheet, which is available on request via the local NXP Semiconductors sales

office. In case of any inconsistency or conflict with the short data sheet, the

full data sheet shall pre vail.

Product specificatio n — The information and data provided in a Product

data sheet shall define the specification of the product as agreed between

NXP Semiconductors and its customer, unless NXP Semiconductors and

customer have explicitly agreed otherwise in writing. In no event however,

shall an agreement be valid in which the NXP Semiconductors product is

deemed to off er functions and qualities beyond those described in the

Product data sheet.

18.3 Disclaimers

Limited warr a nty and liability — Information in this document is believed to

be accurate and reliable. However, NXP Semiconductors does not give any

representations or warranties, expressed or implied, as to the accuracy or

completeness of such information and shall have no liability for the

consequences of use of such information.

In no event shall NXP Semiconductors be liable for any indirect, incidenta l ,

punitive, special or consequ ential damages (including - wit hout limitatio n - lost

profits, lost savings, business interruption, costs related to the removal or

replacement of any products or rework charges) whether or not such

damages are based on tort (including negligence), warranty, breach of

contract or any other legal theory.

Notwithstanding any damages that customer might incur for any reason

whatsoever, NXP Semiconduct ors’ aggregate and cumulat ive liability toward s

customer for the products described herein shall be limited in accordance

with the Terms and conditions of commercial sale of NXP Semiconductors.

Right to make changes — NXP Semiconductors reserves the right to make

changes to information published in this document, including without

limitation specifications and product descriptions, at any time and without

notice. This document supersedes and replaces all informa tion supplied prior

to the publication hereof .

Suitability for use — NXP Semiconductors products are not designed,

authorized or warranted to be suit able for use in life support, life-critical or

safety-critical systems or equipment, nor in applications where failure or

malfunction of an NXP Semiconductors product can reasonably be expected

to result in perso nal injury, death or severe property or environmental

damage. NXP Semiconductors accepts no liab ility for inclusion and/or use of

NXP Semiconductors products in such equipment or applications and

therefore such inclusion and/or use is at the customer’s own risk.

Applications — Applications that are described herein for any of these

products are for illustrative purposes only. NXP Semiconductors makes no

representation or warranty tha t such application s will be suitable for the

specified use without further testing or modification.

Customers are responsible for the design and ope ration of their applications

and products using NXP Semiconductors product s, and NXP Semiconductors

accepts no liability for any assistance with applications or customer product

design. It is customer’s sole responsibility to determine whether the NXP

Semiconductors product is suit able and fit for the custome r’s applications and

products planned, as well as fo r the planned application and use of

customer’s third party customer(s). Customers should provide appropriate

design and operating safeguards to minimize the risks associated with their

applications and products.

NXP Semiconductors does not accept any liabil ity related to any default,

damage, costs or problem which is based on any weakness or default in the

customer’s applications or products, or the application or use by customer’s

third party customer(s). Customer is responsible for doing all necessary

testing for th e customer’s applications and products using NXP

Semiconductors products in order to avoid a default of the applications and

the products or of the application or use by cu stomer’s third party

customer(s). NXP does not accept any liability in this respect.

Limiting values — Stress above one or more limiting values (as defined in

the Absolute Maximum Ratings System of IEC 60134) will cause permanent

damage to the device. Limiting values are stress rating s only and (proper)

operation of the device at these or any other conditions above those given in

the Recommended operating conditions section (if present) or the

Characteristics sections of this document is not warranted. Constant or

repeated exposure to limiting values will permanent ly and irreversibly affect

the quality and reliability of the device.

Terms and conditions of commercial sale — NXP Semiconductors

products are sold subject to the general terms and conditions of commercial

sale, as published at http://www.nxp.com/profile/terms, unless otherwise

agreed in a valid written individua l agreement. In case an individual

agreement is concluded only the ter ms and conditions of the respective

agreement shall apply. NXP Semiconductors hereby expressly object s to

applying the customer’s general terms and conditions with regard to the

purchase of NXP Semiconductors products by customer.

No offer to sell or license — Nothing i n this document may be interpreted or

construed as an of fer t o sell product s that is open for accept ance or t he grant,

conveyance or implication of any license under any copyrights, patents or

other industrial or intellectual property rights.

Quick reference data — The Quick reference data is an extract of the

product data given in the Limiting values and Characteristics sections of this

document, and as such is not complete, exhaustive or legally binding.

Document status[1][2] Product status[3] Definition

Objective [short] data sheet Development This document contains data from the objective specification for product development.

Preliminary [short] dat a sheet Qualification This document contains data from the preliminary specificat ion.

Product [short] dat a sheet Production This document contains the product specification.

Product data sheet Rev. 6 — 27 June 2011 31 of 32

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

Export control — This document as well as the item(s) described herein

may be subject to export control regulations. Export might require a prior

authorization fro m national authorities.

Non-automotive qualified products — Unless this data sheet expressly

states that this specific NXP Semiconductors product is automoti ve qualified,

the product is not suitable for automotive use. It i s neit her qua lified nor tested

in accordance with automotive testing or application requirements. NXP

Semiconductors accepts no liability for inclusion and/or use of

non-automotive qualified products in automotive equipment or applications.

In the event that customer uses the product for design-in and use in

automotive applications to automot ive specifications and standard s, customer

(a) shall use the product without NXP Semiconductors’ warranty of the

product for such automotive applications, use and specifications, and (b)

whenever customer uses the product for automotive applications beyond

NXP Semiconductors’ specifications such use shall be solely at customer’s

own risk, and (c) customer fully indemnifies NXP Semiconductors for any

liability, damages or failed product claims resulting from custome r design and

use of the product for automotive applications beyond NXP Semiconductors’

standard warranty and NXP Semiconductors’ pro duct specifications.

18.4 Trademarks

Notice: All referenced b rands, produc t names, service names and trademarks

are the property of their respect i ve ow ners.

19. Contact information

For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: salesaddresses@nxp.com

NXP Semiconductors PX1011B

PCI Express stand-alone X1 PHY

For more information, please visit: http://www.nxp.co m

For sales office addresses, please send an email to: salesaddresses@nxp.com

Date of release: 27 June 2011

Document identifier: PX1011B

Please be aware that important notices concerning this document and the product(s)

described herein, have been included in section ‘Legal information’.

20. Contents

1 General description. . . . . . . . . . . . . . . . . . . . . . 1

2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1

2.1 PCI Express interface. . . . . . . . . . . . . . . . . . . . 1

2.2 PHY/MAC interface . . . . . . . . . . . . . . . . . . . . . 1

2.3 JTAG interface . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.4 Power management . . . . . . . . . . . . . . . . . . . . . 2

2.5 Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.6 Miscellaneous. . . . . . . . . . . . . . . . . . . . . . . . . . 2

3 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2

4 Ordering information. . . . . . . . . . . . . . . . . . . . . 3

5 Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4

7 Pinning information. . . . . . . . . . . . . . . . . . . . . . 5

7.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

7.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 6

8 Functional description . . . . . . . . . . . . . . . . . . . 8

8.1 Receiving data . . . . . . . . . . . . . . . . . . . . . . . . . 8

8.2 Transmitting data . . . . . . . . . . . . . . . . . . . . . . . 9

8.3 Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

8.4 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

8.5 Power management . . . . . . . . . . . . . . . . . . . . 10

8.6 Receiver detect. . . . . . . . . . . . . . . . . . . . . . . . 11

8.7 Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

8.8 Electrical idle . . . . . . . . . . . . . . . . . . . . . . . . . 13

8.9 Clock tolerance compensation . . . . . . . . . . . . 14

8.10 Error detection . . . . . . . . . . . . . . . . . . . . . . . . 15

8.10.1 8b/10b decode errors . . . . . . . . . . . . . . . . . . . 16

8.10.2 Disparity errors. . . . . . . . . . . . . . . . . . . . . . . . 16

8.10.3 Elastic buffer. . . . . . . . . . . . . . . . . . . . . . . . . . 16

8.11 Polarity inversion . . . . . . . . . . . . . . . . . . . . . . 17

8.12 Setting negative disparity . . . . . . . . . . . . . . . . 18

8.13 JTAG boundary scan interface . . . . . . . . . . . . 18

9 Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . 19

10 Thermal characteristics . . . . . . . . . . . . . . . . . 19

11 Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . 20

12 Package outline . . . . . . . . . . . . . . . . . . . . . . . . 24

13 Soldering of SMD packages . . . . . . . . . . . . . . 25

13.1 Introduction to soldering. . . . . . . . . . . . . . . . . 25

13.2 Wave and reflow soldering . . . . . . . . . . . . . . . 25

13.3 Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . 25

13.4 Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . 26

14 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

14.1 Errata added 2009-09-01 . . . . . . . . . . . . . . . . 27

15 Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 28

16 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

17 Revision history . . . . . . . . . . . . . . . . . . . . . . . 29

18 Legal information . . . . . . . . . . . . . . . . . . . . . . 30

18.1 Data sheet status. . . . . . . . . . . . . . . . . . . . . . 30

18.2 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

18.3 Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . 30

18.4 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . 31

19 Contact information . . . . . . . . . . . . . . . . . . . . 31

20 Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32