Motorola MVME162 manual Introduction, Overview

BOARD LEVEL HARDWARE DESCRIPTION

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Introduction

This chapter describes the board level hardware features of the MVME162 Embedded Controller. The chapter is organized with a board level overview and features list in this introduction, followed by a more detailed hardware functional description. Front panel switches and indicators are included in the detailed hardware functional description. The chapter closes with some general memory maps.

All programmable registers in the MVME162 that reside in ASICs are covered in the MVME162 Embedded Controller Programmer’s Reference Guide.

Overview

The MVME162 is based on the MC68040 or MC68LC040 microprocessor. Various versions of the MVME162 have 1 MB, 4 MB, or 8 MB of parity- protected DRAM, 8 KB of SRAM (with battery backup), time of day clock (with battery backup), Ethernet transceiver interface, two serial ports with EIA-232- D or EIA-530 interface, six tick timers, watchdog timer, a PROM socket, 1 MB Flash memory (one or four Flash devices), four IndustryPack (IP) interfaces, SCSI bus interface with DMA, VMEbus controller, and 512 KB of SRAM with battery backup.

The I/O on the MVME162 is connected to the VMEbus P2 connector. The main board is connected through a P2 transition board and cables to the transition boards. The MVME162 supports the transition boards MVME712-12, MVME712-13, MVME712M, MVME712A, MVME712AM, and MVME712B (referred to in this manual as MVME712X, unless separately specified). The MVME712X transition boards provide configuration headers and provide industry standard connectors for the I/O devices.

The I/O connection for the serial ports on the MVME162 is also provided by two DB-25 front panel I/O connectors. The MVME712 series transition boards were designed to support the MVME167 boards, but can be used on the MVME162 by following some special precautions. (Refer to the section on the Serial Communications Interface, later in this chapter, for more information.) These transition boards provide configuration headers, serial port drivers and industry standard connectors for the I/O devices.

MVME162IG/D21-1