user manual

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3Functional Description
Introduction
This chapter describes the MVME2603/2604 single board computer on a
block diagram level. The General Description provides an overview of the
MVME2603/2604, 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 MVME2603/2604 blocks, including
programmable registers in the ASICs and peripheral chips, can be found in
the Programmer’s Reference Guide, listed in Appendix D, Related
Documentation. Refer to it for a functional description of the
MVME2603/2604 in greater depth.
Features
The following table summarizes the features of the MVME2603/2604
single board computers.
Table 3-1. MVME2603/2604 Features
Feature Description
Microprocessor MPC603 PowerPC
processor (MVME2603-n1n1 models)
MPC604 PowerPC
processor (MVME2604-n1n1 models)
ECC DRAM 16MB-256MB on RAM200 module
L2 cache memory (Optional) 256KB on base board
Flash Memory Two 32-pin PLCC sockets (1MB 16-bit Flash) on base board; two banks
(4MB or 8MB 64-bit Flash) on RAM200 module
Real-time clock 8KB NVRAM with RTC and battery backup (SGS-Thomson
M48T59/T559)
Switches
RESET and ABORT
Status LEDs Six: CHS, BFL, CPU, PCI, FUS, and SYS