Motorola MVME2400 Series Wartungshandbuch PDF herunterladen (Seite 79)

4-1

4Programming the MVME240x

Introduction

This chapter provides basic information useful in programming the

MVME240x. This includes a description of memory maps, control and

status registers, PCI arbitration, interrupt handling, sources of reset, and

big/little endian issues.

For additional programming information about the MVME240x, refer to

the MVME2400-Series VME Processor Module Programmer’s Reference

Guide.

For programming information about the PMCs, refer to the applicable

user’s manual furnished with the PMCs.

Memory Maps

There are multiple buses on the MVME240x and each bus domain has its

own view of the memory map. The following sections describe the

MVME240x memory organization from the following three points of

view:

❏ The mapping of all resources as viewed by the MPU (processor bus

memory map)

❏ The mapping of onboard resources as viewed by PCI local bus

masters (PCI bus memory map)

❏ The mapping of onboard resources as viewed by VMEbus masters

(VMEbus memory map)

Additional, more detailed memory maps can be found in the MVME2400-

Series VME Processor Module Programmer’s Reference Guide.

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Motorola MVME2400 Series Wartungshandbuch Seite 79