
3-1
3
3
Functional Description
Introduction
This chapter describes the MCP750HA single-board computer on a block
diagram level. The
General Description on page 3-2
provides an overview
of the MCP750HA, followed by a detailed description of several blocks of
circuitry.
shows a block diagram of the board’s architecture.
Detailed descriptions of other MCP750HA blocks, including
programmable registers in the ASICs and peripheral chips can be found in
the MCP750 Single Board Computer Programmer’s Reference Guide,
listed in
Appendix C, Related Documentation
. You may also refer to this
guide for a more detailed functional description of the MCP750HA.
Features
The following table summarizes the features of the MCP750HA single-
board computers.
Table 3-1. MCP750HA Features
Feature
Description
Microprocessor
MPC750 PowerPC processor
ECC DRAM
32MB-256MB on RAM300 module
L2 cache memory
Populated with 1MB on base board
Flash Memory
Two 32-pin PLCC sockets (1MB 16-bit Flash) on base board; two banks
(8MB 64-bit Flash) on RAM300 module
Real-time clock
8KB NVRAM with RTC and battery backup (ST Microelectronics M48T559)
Switches
RESET
and
ABORT
Status LEDs
four:
BFL
,
CPU
,
PCI
,
and
CPCI
Tick timers
Three programmable 16-bit timers
Watchdog timers
Provided in SGS-Thomson M48T559 or Raven 3