User`s manual

4: INTERFACING TO THE MOTOROLA MPC821 MICROPROCESSOR
5-22 EPSON APPLICATION NOTES (S19A-G-005-05)
4INTERFACING TO THE MOTOROLA
MPC821 MICROPROCESSOR
4.1 Introduction
This applications note describes the hardware and software required to implement an interface
between the S1D13504 Color Graphics LCD / CRT Controller and the Motorola MPC821 Proces-
sor.
The MPC821 can generate up to eight independent chip select outputs, each of which may be con-
trolled by one of two types of timing generators, the General Purpose Chip Select Module (GPCM)
or the User-Programmable Machine (UPM). Examples are given using the GPCM.