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Figure 1. intel® 80333 i/o processor block diagram – Intel IQ80333 User Manual

Page 13

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Customer Reference Board Manual

13

Intel® IQ80333 I/O Processor

Introduction

Figure 1.

Intel

®

80333 I/O Processor Block Diagram

B3613-02

PCIe x8

Intel XScale

®

Core Bus

Interface Unit

32-/64-bit DDR

Interface

Memory Controller

Interrupt/

GPIO

Unit

SMBus

Arbiter

B PCI-X Slot Bus (133 MHz)

A PCI-X IOP-Bus (133 MHz)

2.1 GB/s Internal Bus (333 MHz)

Arbiter/SHPC

2-channel

DMA

Controller

Timers

UART

Units

2 – I

2

C

Units

16-bit

PBI

Application

Accelerator Unit

PCIe to PCI-X*

Bridge

PCIe to PCI-X*

Bridge

Performance

Monitoring

Message

Unit

ATU

IOAPIC

IOAPIC