Motorola MVME2400 Series Manuel de service télécharger pdf (Page 49)

3-1

3Functional Description

Introduction

This chapter describes the MVME240x VME processor module on a block

diagram level. The General Description provides an overview of the

MVME240x, followed by a detailed description of several blocks of

circuitry. Figure 3-1 shows a block diagram of the overall board

architecture.

Detailed descriptions of other MVME240x blocks, including

programmable registers in the ASICs and peripheral chips, can be found in

the MVME2400-Series VME Processor Module Programmer’s Reference

Guide (part number V2400A/PG). Refer to it for a functional description

of the MVME240x in greater depth.

Features

The following table summarizes the features of the MVME240x VME

processor module.

Table 3-1. MVME240x Features

Feature Description

Microprocessor

233 MHZ MPC750 PowerPC

processor

(MVME2401 - 2402 models)

350 MHZ MPC750 PowerPC

processor

(MVME2431 - 2434 models)

Form factor 6U VMEbus

SDRAM

Double-Bit-Error detect, Single-Bit-Error correct across 72 bits 32MB,

64MB, or 128MB SDRAM

L2 Cache

Build-option for 1MB back side L2 Cache using late write or burst-

mode SRAMS

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Motorola MVME2400 Series Manuel de service Page 49