MB87069

MB87069 April 1986 Edition 1.0 DESCRIPTION The Fujitsu MB87069 is a dedicated Serial Interface Adapter (SIA) that provides cost-effective interface support between the Fujitsu MB8764 Digital Signal Processor (DSP). PCM CODECs. and general purpose microprocessors. Some interface examples are shown later in this document. FEATURES Supports M88764 for interface of PCM CODEC and microprocessor Serial 1/0 functions (dual input/output lines) Conversion circuits for JJ-law/A-law data to linear data and vice-versa Interface cirgfJit for microprocessor Software-controlled operations from M88764 or microprocessor Silicon~gate CMOS process 64-pin Pin Grid Array (PGA) package PGA-64C-A02 This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages 10 this high impedance circuit. 6-38 I...