4-1
4
4Functional Description
Introduction
This chapter describes the MVME162P4 VME embedded controller on a
block diagram level. The Summary of Features provides an overview of
the MVME162P4, followed by a detailed description of several blocks of
circuitry. Figure 4-1 shows a block diagram of the overall board
architecture.
Detailed descriptions of other MVME162P4 blocks, including
programmable registers in the ASICs and peripheral chips, can be found in
the MVME1X2P4 Embedded Controller Programmer’s Reference Guide
(part number V1X2PFXA/PG). Refer to that manual for a functional
description of the MVME162P4 in greater depth.
Summary of Features
The following table summarizes the features of the MVME162P4 VME
embedded controller.
Table 4-1. MVME162P4 Features
Feature Description
Microprocessor MVME162P4: 25MHz or 32MHZ MC68040 or MC68LC040 processor
Form factor 6U VMEbus
Memory
16/32MB synchronous DRAM (SDRAM), configurable to emulate
1/4/8/16MB parity-protected DRAM or 4/8/16/32MB ECC-protected
DRAM
512KB SRAM with battery backup
Flash memory MVME162P4: One Intel 28F016SA 1MB or 2MB 8-bit Flash device
EPROM One 32-pin JEDEC standard PLCC EPROM socket with 512Kb x 8 density
Real-time clock
8KB NVRAM with RTC, battery backup, and watchdog function (SGS-
Thomson M48T58)
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