bcm1115r Broadcom Corp., bcm1115r Datasheet - Page 2

• Manufacturer Part Number: bcm1115r
• Description: Bcm1115r - Single-port Voip Cpe Engine
• Manufacturer: Broadcom Corp.

Broadcom's BCM1115R is designed for use in feature-reduced, cost-
sensitive, single Ethernet port consumer and Enterprise IP Phone and
Gateway products.
Key modules integrated in the BCM1115R include:
• MIPS32 87.5-MHz processor with 8K 2-way set associative I-cache
• ZSP 87-MHz DSP with 48-KB instruction and 32-KB data RAM.
Broadcom
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respective owners.
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2006 by BROADCOM CORPORATION. All rights reserved.
1115R-PB03-R
and 4K 2-way associated D-cache. This MCU supports the VoIP
protocol stacks, VxWorks operating system, and customer application
software. Programming is done in C, on top of Broadcom's object-
oriented signal processing API.
The DSP can support narrowband voice communication using G.711,
G.726, G.723.1/A, G.729A/AB, or BroadVoice16, and wideband
communications using G.722 or BroadVoice32. Full-duplex
speakerphone capability is supported in conjunction with any of these
voice compression techniques for IP phone designs. The DSP also
supports enhanced Packet Loss Concealment, Jitter Buffer, fax relay
and telephony algorithms e.g., DTMF and Call Progress Tones).
®
, the pulse logo, Connecting everything
3/06/06
®
Master SPI
Port
Watchdog
10BT/100BASE-T
Auto-MDIX Phy
Timer
Analog Processor Module
®
CODEC Channel 1
, the Connecting everything logo, and BroadVoice
UART 0
CODEC Channel 2
16-bit D/A
16-bit A/D
Timers
UART 1
Peripheral Bus
18 GPIOs
MIPS JTAG
O V E R V I E W
48 KB of
Program
Memory
Memory
32 KB
Data
Ethernet LED
Driver
10/100BASE-T Ethernet MAC
802.1p/Q Support
Interrupt Controller
External
MIPS32 CPU
+ 8K I-Cache
+ 4K D-Cache
• Analog codecs: Two integrated analog CODECs capable of
• 10/100BASE-T Media Access Controller and Transceiver. The
The BCM1115R is pin and software compatible with the BCM1101 and
BCM1112 ICs suited for IP Phone and Terminal Adapter products that
require basic application features sets, while still requiring the same
voice quality and reliability of higher end products.
ZSP JTAG
ZSP DSP
supporting both narrowband 8 Kilohertz (KHz) and wideband 16 KHz
sampling, which, in conjunction with wideband voice coders, such as
Broadcom's BroadVoice32, will enable IP phone networks to deliver
high fidelity voice transmission.
Media Access Controller (MAC) supports 802.1p prioritization of
voice packets and 802.1Q VLAN support for segmenting physical
networks into multiple logical networks. The transceiver performs all
of the functions for 100BASE-T Ethernet in full- or half-duplex mode
over Category (CAT) 5 twisted pair cabling and 10BASE-T Ethernet
in full- or half-duplex mode over CAT 3, 4, or 5 twisted-pair cable.
The PHY also supports auto-MDI/MDIX detection to allow the use of
any cable type. The transceiver integrates support for in-line powering
over Ethernet.
®
Keypad Scan Controller
(for 18 GPIOs)
DMA Arbiter
Bridge
IPB
External Bus
Speed
Port 2
Speed
Port 1
Serial
Serial
IOM-2
High
High
TDM
Port
Interface
Interface
SDRAM
50 MHz
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.broadcom.com
EPROM
SDRAM
Flash/