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FDC3400 Datasheet Floppy Disk Hard Sector Data Handler

Manufacturer: SMSC (now Microchip Technology)

General Description

The FDC3400 is an MOS integrated circuit which simplifies the data interface between a processor and a floppy disk drive.

During a write operation, the HSDH receives data from the processor and shifts it out bit-serially to the floppy disk data encoding logic.

Similarly, during a read operation the HSDH receives a bit-serial stream of read data from the floppy disk data separator, establishes byte synchronization by detecting the sync byte, and transfers data on a byte by byte basis to the processor.

Overview

STANDARD MICROSYSTEMS CORPORATI~ON~_ _i i FDC3400 ILPC FAMILY Floppy Disk Hard Sector Data.

Key Features

  • o Hard-Sectored Operation - performs all data operations o Single or Double Density Operation- recording code independent o Minifloppy or Standard Floppy compatible o Programmable Sync Byte o Internal Sync Byte Detection and Byte Framing o Fully Double Buffered o Data Overrun/Underrun Detection o Dual Disk Operation - Write on one disk drive while simultaneously reading from another o Tri-State Output Bus for processor compatibility o TTL Compatible Inputs and Outputs . PIN.