cx82100 Conexant Systems, Inc., cx82100 Datasheet - Page 16

• Manufacturer Part Number: cx82100
• Description: Home Network Processor Hnp
• Manufacturer: Conexant Systems, Inc.

1.1
1.2
1-2
Scope
Features
Conexant Proprietary and Confidential Information
6.
This document describes the CX82100 HNP hardware architecture.
•
•
•
•
•
•
•
•
CX82100-42 supports basic functions, programmable HRDY# polarity for wireless
applications and Intoto Firewall software. Same pinout as the CX82100-41.
Recommended for new designs.
Single-chip, high-performance processor with integrated network interfaces
−
−
−
−
−
−
−
−
−
−
−
ARM940T processor
−
−
−
−
−
−
−
Dual Media Independent Interface (MII) interface to 10/100 Ethernet PHY
Host Parallel Expansion Bus interface to Flash ROM and other devices
Parallel interface to SDRAM/SRAM
JTAG interface
22 general purpose I/O lines (13 available for application use, 6 available for
application use if optional signals for EEPROM, Host Parallel Expansion Bus, and
Clock are not used, and 3 dedicated to system signals)
196-pin FPBGA
CX82100 Home Network Processor Data Sheet
ARM940T processor
Advanced Microcontroller Bus Architecture (AMBA) with two internal busses
♦
♦
16k x 32 internal ROM
8k x 32 internal RAM
External Memory Controller (EMC)
Two identical 10/100 Mbps IEEE 802.3 Ethernet Media Access Controllers
(EMACs) with MII/7-WS interfaces
USB 1.1 Slave Interface
General Purpose Input/Output (GPIO) signals
Timers
Interrupt Controller (INTC)
Clock Generators
ARM9TDMI Core
Advanced System Bus (ASB) interface
Advanced Peripheral Bus (APB) interface
Separate 4 kB instruction and 4 kB data caches
Write-back cache scheme and write buffer optimize performance and minimize
ASB traffic
Five-stage pipeline with fetch, decode, execute, memory and write stages
‘TrackingICE’ mode allows a conventional ICE (in-circuit emulator) mode of
operation
Advanced System Bus (ASB)
Advanced Peripheral Bus (APB)
101306C