Motorola 700/800-Series User Manual

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Board Level Hardware
Description
 
Introduction
 
This chapter describes the board level hardware features of the 
700/800-series MVME162LX VME 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 MVME162LX programmable registers that reside in ASICs are 
covered in the 
 
MVME162LX Embedded Controller ProgrammerÕs 
Reference Guide.
 
Overview
 
The MVME162LX is based on the MC68040 microprocessor. 
Various versions of the MVME162LX have parity-protected DRAM 
(4MB, 8M, or 16MB); or ECC-protected DRAM (4MB, 8MB, 16MB, 
or 32MB); 128KB of SRAM (with battery backup); a time-of-day 
clock (with battery backup); an optional LAN Ethernet transceiver 
interface; four serial ports with EIA-232-D interface; six tick timers 
with watchdog timer(s); two EPROM sockets; 2MB Flash memory 
(one Flash device); two IndustryPack (IP) interfaces with DMA; 
optional SCSI bus interface with DMA; and an optional VMEbus 
interface (local bus to VMEbus/VMEbus to local bus, with 
A16/A24/A32, D8/D16/D32 bus widths and a VMEbus system 
controller).
Input/Output (I/O) signals are routed through industry-standard 
connectors on the MVME162LX front panel; no adapter boards or 
transition modules are required. I/O connections include an 
optional 68-pin SCSI connector, an optional DB-15 Ethernet