HD63463 - Hitachi Semiconductor

HD63463 Hard Disk Controller

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 interfac.

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.