FDC37C666GT View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

MFG CO.

FDC37C666GT

High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers

SMSC -> Microchip 

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This byte reflects the value of the LOCK bit set

by the command byte.

ENHANCED DUMPREG

The DUMPREG command is designed to

support system run-time diagnostics and

application software development and debug.

To accommodate the LOCK command and the

enhanced PERPENDICULAR MODE command

the eighth byte of the DUMPREG command has

been modified to contain the additional data

from these two commands.

COMPATIBILITY

The FDC37C665GT/666GT was designed with

software compatibility in mind. It is a fully

backwards- compatible solution with the older

generation 765A/B disk controllers. The FDC

also implements on-board registers for

compatibility with the PS/2, as well as PC/AT

and PC/XT, floppy disk controller subsystems.

After a hardware reset of the FDC, all registers,

functions and enhancements default to a PC/AT,

PS/2 or PS/2 Model 30 compatible operating

mode, depending on how the IDENT and MFM

bits are configured by the system bios.

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