PRODUCT
Brief
B C M 1 1 0 0
10/100BASE-T Ethernet Switch with 802.1p Support
Ensures QoS for voice packets and minimizes latency
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
100 MHz MIPS32 CPU Supporting:
H.323, H.248/Megaco and SIP
Application program
140 MHz DSP Supporting:
G.711, G.726, G.729A/AB/E, G.723.1/A, G.728
Half- and full-duplex speakerphone operation
Two- and three-channel conferencing
Fax relay (T.38, V.17, V.29, V27ter)
Ancillary telephony algorithms
10/100BASE-T Ethernet MACs and PHYs
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
B C M 1 1 0 0 V O I C E O V E R I P E T H E R N E T C P E E N G I N E
S U M M A R Y O F B E N E F I T S
The BCM1100 is the most highly integrated silicon
solution for Voice over IP Enterprise Phone and
Ethernet Residential Gateway applications.
The BCM1100 Integrates:
100 MHz MIPS32 CPU (110 DMIPS) with 4K 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
Three wideband audio ADCs and DACs
9x9 keyscan controller
Ethernet status LED driver
TDM interface supporting IOM-2
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)
1.8/2.5/3.3V Operation
1.8W Low Power 0.18u Process Technology
256 PBGA Package
B C M 1 1 0 0 F E A T U R E S
BCM91100 Reference Platform
Complete Ethernet IP Phone reference design in phone
plastics
BCM91100SV Reference Platform
Ethernet Residential Gateway reference design
H A R D W A R E P L A T F O R M S
B C M 1 1 0 0 O V E R V I E W
The Broadcom BCM1100 represents a new level of integration
for enterprise Ethernet IP Phone and small gateway applications.
Key modules integrated in the BCM1100 include:
MIPS32 100 MHz processor with 4K 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 48K instruction and 32K 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, 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 BCM1100 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.
Analog Processor Module (APM)
MIPS32 CPU
+ 4K I-Cache
+ 4K D-Cache
ZSP DSP
3 Port
Ethernet
Switch
CODEC Channel 3
Uart 0
Timers
IPB Bridge
Peripheral Bus
DMA Arbiter
100 MHz CPU System Bus
32 KB
Data
Memory
SDRAM
Ext.
Interrupt
Controller
Keypad
Scan
Controller
10BT/100BT
Auto-MDIX Phy
64KB Buffer
Memory
48 KB
Program
Memory
Watchdog
Timer
18 GPIOs
Ethernet LED
Driver
CODEC Channel 2
CODEC Channel 1
14 bit D/A
14 bit A/D
Flash/
EPROM
TDM Port
High Speed
Serial Port 1
High Speed
Serial Port 2
SDRAM
Interface
50 MHz
External Bus
Interface
10BT/100BT
Auto-MDIX Phy
port 0
port 1
port 2
ZSP JTAG
MIPS JTAG
Uart 1
Master SPI
Port
For more information please contact us at:
Phone: 949-450-8700, FAX: 949-450-8710
Email: info@broadcom.com
Visit our web site at: www.broadcom.com
2000 BROADCOM CORPORATION
1100.PB03-R-1.25.01
Broadcom
and the pulse logo are registered trade marks of Broadcom Corporation and/or its
subsidiaries in the United States and certain other countries.
IOM-2 is a registered trademark of Infineon Technologies AG.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
BCM1100 VoIP Ethernet CPE Engine
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