PRODUCT
PRODUCT
Brief
Brief
BCM1101
•10/100BASE-T Ethernet Switch with 802.1p/Q Support
• 802.1p priority queuing ensures QoS for voice packets and
minimizes latency
• Supports modification of 802.1p priority tags on packets to
enforce priority tagging rules
• 802.1Q VLAN support allows for segmenting physical networks
into multiple logical networks
• MIPS32 CPU not burdened by data packet processing, leaving
more cycles for application program
• Enables wire-speed non-blocking operation
• Blocks unnecessary traffic by learning local MAC addresses
• Segments network, preventing any restriction on number of
hops
•150 MHz MIPS32 CPU and 140 MHz DSP Support
•In IP Phone applications:
– H.323, H.248/Megaco, SIP and MGCP
– G.711, G.726, G.729A/AB/E, G.723.1/A, G.728, G.722.1 and
BroadVoiceTM
– Half- and full-duplex speakerphone operation
– Two- and three-channel conferencing of any mix of vocoders
– Paging (via a G.711 channel)
•In VoIP gateway applications:
– H.323, H.248/Megaco, SIP and MGCP
– G.711, G.726, G.729A/AB/E, G.723.1/A and G.728
– Fax relay (T.38, V.17, V.29, V27ter)
– Two voice channels , or one voice channel and one fax
channel, and a third channel limited to G.711 voice
•In PacketCable SMTA applications:
– PacketCable NCS
– G.711, G.729E, and G.728
– Two voice channels with complex vocoders
•10/100BASE-T Ethernet MACs and PHYs
• Integrates support for Cisco in-line power specification
• Compliant with 802.3af power over Ethernet standard
• Provides auto-MDI/MDIX, enabling the use of straight or
crossover cables in either port
•Wideband audio CODECs
• Enables support of emerging wideband vocoding standards
•Glueless interface to BCM4210/4100 HPNA MAC and
AFE devices
• Enables low-cost home networking IP phone prototyping
BCM1101 ENTERPRISE IP PHONE CHIP
SUMMARY OF BENEFITS
•The BCM1101 is the most highly integrated silicon
solution for Voice over IP enterprise phone and
Ethernet residential gateway applications.
•The BCM1101 Integrates:
• 150 MHz MIPS32 CPU (165 DMIPS) with 8K I-cache and
4K D-cache
• Superscalar 140 MHz ZSP DSP with dual-MAC (280 MIPS),
48K instruction and 32K data RAM
• Three-port 10/100BASE-T Ethernet switch with 64K buffer
memory
• Two 10/100BASE-T Ethernet PHYs with in-line power over
Ethernet support
• Three wideband audio ADCs and DACs
• 9x9 keyscan controller
• Ethernet status LED driver
• TDM IOM-2®port
• Two UARTs
• Two high-speed serial ports
• General purpose I/O
• Interrupt control unit
• DMA support unit
• SDRAM interface
• External bus interface
• IEEE 1149.1 (JTAG)
•0.18µ process technology, 1.8/3.3V
•1.1W peak, 0.3–0.8W standby modes
•256-pin PBGA package enables 4-layer PCB designs
BCM1101 FEATURES
•BCM91101 reference platform
•Complete Ethernet IP phone reference design in phone
plastics
•BCM91101SMTA reference platform
•Ethernet residential gateway reference design
•PacketCable SMTA reference design
HARDWARE PLATFORMS
®
BCM1101 OVERVIEW
Analog Processor Module
MIPS32 CPU
+ 8K I-Cache
+ 4K D-Cache
ZSP DSP
Three-Port
Ethernet
Switch
CODEC Channel 3
UART 0
Timers
IPB
Bridge
Peripheral Bus
DMA Arbiter
100-MHz CPU System Bus
32 KB of
Data
Memory
SDRAM
External
Interrupt
Controller
Keypad Scan Controller
[or 18 GPIOs]
10/100BASE-T
Auto-MDIX PHY
64 KB of
Buffer Memory
48 KB of
Program
Memory
Watchdog
Timer
18 GPIOs
Ethernet LED
Driver
CODEC Channel 2
Flash/
EPROM
TDM
(IOM-2)
Port
High
Speed
Serial
Port 1
High
Speed
Serial
Port 2
SDRAM
Interface
50-MHz
External Bus
Interface
10/100BASE-T
Auto-MDIX PHY
port 0
port 1
port 2
ZSP JTAG
MIPS JTAG
UART 1
Master SPI
Port
CODEC Channel 1
16-bit D/A
16-bit A/D
BCM1101 VoIP Ethernet CPE Engine
The Broadcom BCM1101 represents a new level of integration
for enterprise Ethernet IP phone and small gateway applications.
Key modules integrated in the BCM1101 include:
•MIPS32 150-MHz processor with 8K 2-way set
associative I-cache and a 4K 2-way associative D-cache.
This MCU supports the VoIP protocol stacks, jitter buffer
management, and application program. Programming is
done in C, on top of Broadcom’s object-oriented signal
processing API.
•ZSP 140-MHz DSP with 48-KB instruction and 32-KB
data RAM. The DSP supports a wide range of vocoders,
acoustic echo cancellation for full-duplex speakerphone,
fax modems, and a variety of telephony algorithms (e.g.,
DTMF and Call Progress Tones).
•Analog codecs. Three ADCs and DACs are integrated,
eliminating the need for an analog switch to allow the
sharing of a codec between multiple interfaces.
•10/100BASE-T Ethernet switch, media access controllers,
and transceivers. The three-port Ethernet switch integrates
three full-duplex capable Media Access Controllers
(MACs), a serial management port, an address resolution
engine, a non-blocking switch controller, 64K of internal
switch memory, 802.1p prioritization for voice packets,
802.1Q VLAN support for segmenting physical networks
into multiple logical networks, and a set of Management
Information Base (MIB) statistics registers. The two
transceivers perform all of the functions for 100BASE-T
Ethernet in full- or half-duplex mode over Category (CAT)
5 twisted pair cable and 10BASE-T Ethernet in full- or
half-duplex mode over CAT 3, 4, or 5 twisted pair cable.
They support auto-MDI/MDIX detection to allow the use
of any cable type in either port. The transceivers also
integrate support for in-line powering over Ethernet.
The BCM1101 represents the first silicon solution that integrates
all the key silicon components of an Ethernet IP Phone into a
single device, thereby reducing the overall system cost and
complexity of Enterprise IP Phone products, while at the same
time increasing their voice quality and the reliability of the
network to which they are attached.
®
Phone: 949-450-8700
FAX: 949-450-8710
Email: info@broadcom.com
Web: www.broadcom.com
Broadcom®, the pulse logo, BroadVoiceTM, and Connecting everything®are trademarks of
Broadcom Corporation and/or its subsidiaries in the United States and certain other countries.
IOM-2®is a trademark of Infineon Technologies AG. All other trademarks are the property of
their respective owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2002 by BROADCOM CORPORATION. All rights reser ved.
1101-PB04-R 10.31.02
