cx82100 Conexant Systems, Inc., cx82100 Datasheet - Page 17

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

1.3
Figure 1-1. CX82100 HNP Major System Interface
101306C
PC or Hub
(Optional)
or SRAM
SDRAM
General Hardware Overview
USB
Conexant Proprietary and Confidential Information
The major CX82100 HNP internal components (also referred to as blocks or functions)
and external interfaces of the CX82100 HNP are illustrated in Figure 1-1.
A typical system interface for a Residential Gateway Firewall plus Router application
using the CX82100 HNP is illustrated in Figure 1-2.
A typical system interface for an Ethernet/HomePNA 2.0 Bridge application using the
CX82100 HNP is illustrated in Figure 1-3.
The major internal and external CX82100 interconnection signal paths are illustrated in
Figure 1-4.
CX82100 Hom e Netw ork Processor (HNP)
Serial Bus
CX82100 Home Network Processor Data Sheet
Controller
Universal
Interface
Random
Mem ory
External
Mem ory
Access
(RAM)
(EMC)
(USB)
ARM940T Processor
Control Logic
Input/Output
Read-Only
Interface
Purpose
EEPROM
Mem ory
General
(GPIO)
(ROM)
Ethernet Media
Ethernet Media
Controller 2
Controller 1
(EMAC 2)
(EMAC 1)
Interface
Access
Access
Host
Expansion
Parallel
Host
Bus
MII/7W S
MII/7W S
CX24611 Hom ePNA 2.0
CX24611 Hom ePNA 2.0
Other Peripherals
4-Port Switch
PHY/AFE or
Flash ROM
Ethernet or
Ethernet or
PHY/AFE
(Optional)
(Optional)
101306_065
1-3