UPD72042A Datasheet - NEC

UPD72042A LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL

DATA SHEET µPD72042A, 72042B LSI DEVICES FOR Inter Equipment BusTM (IEBusTM) PROTOCOL CONTROL MOS INTEGRATED CIRCUIT The µPD72042A and µPD72042B are microcomputer peripheral LSI devices for IEBus protocol control. The µPD72042A and µPD72042B perform all the processing required for layers 1 and 2 of the IEBus. The devices incorporate large transmission and reception buffers, allowing the microcomputer to perform IEBus operations without interruption. They also contain an IEBus driver and recei.

UPD72042A Features

* Control of layers 1 and 2 of the IEBus protocol

* Support of a multi-master scheme

* Broadcast function

* Two communication modes having different transmission speeds can be selected. When operating at 6 MHz Mode 0 Mode 1 q q

* Microcomputer interface Thre

UPD72042A_NEC.pdf