HD68230 Datasheet (Hitachi Semiconductor)

HD68230, Parallel Interface Timer

HD68230 PitT (Parallel Interface Timer) The HD68230 Parallel Interface/Timer provides versatile double buffered parallel interfaces and an operating system oriented timer to HD68000 systems.

The parallel interfaces operate in unidirectional or bidirectional modes, either 8 or 16 bits wide.

In the unidirectional modes, an associated data direction register determines whether the port pins are inputs or outputs.

In the bidire

HD68230 Features

* HD68000 Bus Compatible

* Port Modes Include: Bit I/O Unidirectional 8-Bit and 16-Bit Bidirectional 8-Bit and 16-Bit

* Selectable Handshaking Options

* 24-Bit Programmable Timer

* Software Programmable Timer Modes

* Contains Interrupt Vector Generatio