Introduction; Iq80960Rm/Iq80960Rn Platform Functional Block Diagram - Intel IQ80960RM Manual

Introduction

This manual describes the IQ80960RM and IQ80960RN evaluation platforms for Intel's i960
RM/RN I/O processor. The i960 RM/RN I/O processors combine an 80960JT core with two PCI
bus interfaces, as well as a memory controller, DMA channels, an interrupt controller interface,
2
and an I C serial bus. The difference between the two processors is that the 80960RN utilizes
64-bit primary PCI and secondary PCI buses while the 80960RM utilizes both a 32-bit primary and
secondary PCI bus. The IQ80960RM and IQ80960RN platforms are full-length PCI adapter boards
and are 8.9" in height to accommodate four standard PCI connectors on the secondary PCI bus.
The boards can be installed in any PCI host system that complies with the PCI Local Bus
Specification Revision 2.1. PCI devices can be connected to the secondary bus to build powerful
intelligent I/O subsystems.
Figure 1-1.

IQ80960RM/IQ80960RN Platform Functional Block Diagram

Battery
Backup
Support
IQ80960RM/RN Evaluation Board Manual
Secondary PCI Slot 4
Secondary PCI Slot 3
Secondary PCI Slot 2
Secondary PCI Slot 1
SDRAM (x72)
Logic Analyzer Interface
®
i960 RM/RN
Secondary PCI
I/O Processor
Bus 32/64-bits
ROM Bus
Primary PCI Bus 32/64-bits
Console
Port
RS-232
Serial Port
Logic
Flash
Analyzer
UART
ROM
Interface
1
®
User
LED
LED
Register
1-1