CX82110-11

Introduction

The Conexant™ CX82100 Home Network Processor (HNP) is a single-chip, 185 MIPS high performance, ARM940T-based processor integrated with multiple network interface hardware functions and packaged into a 196-pin FPBGA. Embedded firmware supports complete networking system solutions in a wide variety of commercial, industrial, business, SOHO, and home applications with appropriate host software.

Features

• Single-chip, high-performance processor with integrated network interfaces
− ARM940T processor
− Advanced Microcontroller Bus Architecture (AMBA) with two internal busses
♦ Advanced System Bus (ASB)
♦ Advanced Peripheral Bus (APB)
− 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
• ARM940T processor
− 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
• 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