BCM1112
器件资料摘要：
BCM1112
®
VOICE OVER IP CPE ENGINE
• The BCM1112 is the most highly integrated silicon solution for
Ethernet Residential Gateway and Stand-Alone Media
Terminal Adapter applications.
The BCM1112 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
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)
0.18u process technology, 1.8/3.3V
1.1W peak, 0.3-0.8W standby modes
256-PBGA package enables 4-layer PCB designs
Pin Compatible with BCM1101
10/100BASE-T Ethernet Switch with 802.1p/Q Support
802.1p Ensures QoS for voice packets and minimizes latency
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
In VoIP Gateway applications:
- Full SIP client implementation
- G.711, G.726, G.729A/AB and G.723.1/A
- 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
10/100BASE-T Ethernet MACs and PHYs
Integrates support for Modified Link Pulse 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
FEATURES SUMMARY OF BENEFITS
HARDWARE PLATFORMS
BCM91112SMTA Reference Platform
Ethernet Residential Gateway reference design
PacketCable SMTA reference design
®
VOICE OVER IP CPE ENGINE
• The BCM1112 is the most highly integrated silicon solution for
Ethernet Residential Gateway and Stand-Alone Media
Terminal Adapter applications.
The BCM1112 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
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)
0.18u process technology, 1.8/3.3V
1.1W peak, 0.3-0.8W standby modes
256-PBGA package enables 4-layer PCB designs
Pin Compatible with BCM1101
10/100BASE-T Ethernet Switch with 802.1p/Q Support
802.1p Ensures QoS for voice packets and minimizes latency
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
In VoIP Gateway applications:
- Full SIP client implementation
- G.711, G.726, G.729A/AB and G.723.1/A
- 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
10/100BASE-T Ethernet MACs and PHYs
Integrates support for Modified Link Pulse 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
FEATURES SUMMARY OF BENEFITS
HARDWARE PLATFORMS
BCM91112SMTA Reference Platform
Ethernet Residential Gateway reference design
PacketCable SMTA reference design