M5M82C37AFP-4

MITSUBISHI LSls MSM82C37AFP,-4,-S CMOS PROGRAMMABLE DMA CONTROLLER DESCRIPTION The M5M82C37AFP is a programmable 4-channel DMA (Direct Memory Access) controller. This device is specially designed to simplify data transfer at high trasfer rate for microcomputer systems. Fabricated using the silicon-gate CMOS technology, the M5M82C37AFP operates using a single 5V power supply. FEATURES 5V single supply, single TTL clock Four channel DMA controls with priority DMA request acknowledge functions DMA enable/disable, automatic initialization enable/dis- able, address increment/decrement programmability for each cannel Programmable DREQ input and DACK output logic polarity Direct connecting permits easy DMA channel expansion. Memory to memory data transfer EOP input/output permits DMA operation completion check as well as forcibly completing DMA operation. APPLICATION DMA control of peripheral equipment such as floppy diskettes and CRT terminals that require h...