BCM1101
ENTERPRISE IP PHONE CHIP
The BCM1101 is the most highly integrated silicon solution for
feature enhanced Voice over IP enterprise phones
The BCM1101 Integrates:
150 MHz MIPS32 CPU (165 DMIPS) with 8K I-cache and 4K
D-cache
Superscalar 108 MHz ZSP DSP with dual-MAC (216 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)
0.18 process technology, 1.8/3.3V
1.1W peak, 0.30.8W standby modes
256-pin PBGA package enables 4-layer PCB designs
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 108 MHz DSP Support
VxWorks/WinCE Operating Systems
SIP, H.323, H.248/Megaco, and MGCP
G.711, G.726, G.729A/AB/E, G.723.1/A, G.722.1 and
BroadVoice
Full-duplex speakerphone operation
Handset echo suppression
Two- and three-channel conferencing using complex vocoders
Enhanced Packet Loss Concealment
Paging (via a G.711 channel)
Advanced user applications
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
BCM91101 reference platform
Ethernet IP phone reference platform for mid-range IP Phones
designs
BCM91101SP reference platform
Ethernet IP Phone reference platform for feature enhanced,
touch screen IP Phone designs
F E A T U R E S
S U M M A R Y O F B E N E F I T S
H A R D W A R E P L A T F O R M S
O V E R V I E W
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
2005 by BROADCOM CORPORATION. All rights reserved.
1101-PB08-R
02/01/05
Broadcom
, the pulse logo, Connecting everything
, the Connecting everything logo, and BroadVoice
are trademarks of Broadcom Corporation and/or its affiliates in the United States, EU and/or certain other
countries. Any other trademarks or trade names mentioned are the property of their respective owners.
BCM1101 VoIP Ethernet CPE Engine
The Broadcom BCM1101 represents a new level of integration for
feature enhanced Ethernet IP phone products.
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 108-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.
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 B
u
s
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
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