HD63463

H063463--------------- HOC (Hard Disk Controller) DESCRIPTION The HD63463 (HDC: Hard Disk Controller) is a CMOS device developed for use as a peripheral LSI for the 16·bit microprocessor HD68000 (MPU: Microprocessing Unit). The HDC connects the host system and the Winchester type hard disk device with or without HD68450 (DMAC: Direct Memory Access Controller). HD63463·6 HD63463·8 FEATURES Two types of disk interface, ST506/ST412/ST412HP and SMD Choice of data bus width - 16 or 8 bits Serial data transfer rate - max 20 Mbit/s [NRZI, max 10 Mbit/s [MFMI Step rate - max 1.1 MHz Internal data buffer (256 bytes x 2) Zero·sector interleave access Programmed 1/0 access Automatic error correction Zero pattern detectorIgenerator, address mark detector1 generator, write precompensation logic, etc internally provided 22 high·level function commands 25 error codes External circuit diagnosis command Low power dissipation - typ 250 mW HD63...