Motorola IH5 User Manual

6-2

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Functional Description

The MCPN750A is a hot swappable CompactPCI, non-system slot, single-
board computer equipped with an MPC750 PowerPC™ 750 Series 
microprocessor. The processor implements a backside cache controller 
and the board comes with 1MB of cache memory.

As shown in the Features section, the MCPN750A offers many standard 
features desirable in a CompactPCI computer system such as L2 cache, a 
PCI Bridge and Interrupt Controller, an ECC Memory Controller chipset, 
5MB of linear FLASH memory, 16MB to 256MB of ECC-protected 
DRAM, interface to a CompactPCI bus, and several I/O peripherals.

I/O peripheral interfaces present onboard include 10BaseT/100BaseTX 
Ethernet, USB host controller, four asynchronous serial ports, a 512 x 8 
Serial EEPROM, an ISA slave interface, a Fast EIDE interface and two 
PMC slots. Functions provided from the ISA bus include a real time clock, 
NVRAM, serial ports and status registers.

Interrupts

Software interrupt handling via Raven (PCI-MPU bridge) and 
Peripheral Bus Controller

Serial I/O

1 async port (COM1) via front panel. 4 async ports via the transition 
module

Ethernet I/O

10BaseT/100BaseTX connection via the front panel, or optionally via 
the transition module rear panel.

PCI interface

Two Single Wide, or one Double Wide IEEE P1386.1 PCI Mezzanine 
Card (PMC) slots; two sets of four 64 pin CompactPCI connectors (J11-
J14 & J21-J24) for PCI expansion.

CompactPCI

33 MHz, 64-bit CompactPCI interface with 21554 PCI-to-PCI bridge.

USB I/O

USB Host/Hub interface with two ports routed to the transition module

EIDE

Primary EIDE port routed to transition module CompactFlash 
connectors.