Computer Hardware User Manual

Table Of Contents
3-1
3
3PCCchip2
Introduction
This chapter defines the peripheral channel controller ASIC, referred to
hereafter as the PCCchip2. The PCCchip2 is designed to interface an
MC68040-compatible local bus (Local Bus) to various peripheral devices.
Summary of Major Features
This section lists the major features of the PCCchip2.
BBRAM interface with dynamic sizing support.
8-bit parallel I/O port.
Master and slave interface for CD2401 Intelligent Multi-Protocol
Peripheral.
Host interface to Intel 82596CA LAN Coprocessor.
Host interface to NCR SCSI I/O Processor.
Two 32-bit tick timers.
Interrupt handler for tick timers and all peripherals:
All interrupts are level-programmable.
All interrupts are maskable.
All interrupts provide a unique vector.