date : 7-19-91


   The following references are ones I use:

   1) the Users Guide for the Floppy Disk Controler_Plus
      (A Western Digital Clone),

   2) the 1989 National Semiconductor Mass Storage Hand Book
      (referencing the Floppy Disk Controller_Plus2
       or the NS DP8473 Floppy Diskette Controller),

   3) the NEC 1981 Catalog for Microcomputers
      or the NEC �PD765,

   4) the NEC 1987 MicroComputer Products Databook;
      Microprocessors, peripherals, & DSP products
      vol 2 of 2;
      the NEC �PD7265,NEC �PD72065  and NEC �PD72066

   5) the IBM Technical Reference Manual for the PC,

   6) the IBM Technical Reference; Personal Computer AT

   7) the Western Digital DataBook; 1991 Devices
      (referencing the Floppy Disk Controller
       or the WD37C65C),

   8) the 1983 INTEL Microprocessor and Peripheral Handbook
      (referencing the Single/Doule Density Floppy Disk Controller
       or the 8272A),

   9) the 1985 INTEL Microsystems Components Handbook, Volume II

   10) the 1987 INTEL 80286 and 80287 Programer's Reference Manual

   11) the 1984 ROCKWELL DataBook;Semiconductor Products Division
       the R6765

   12) the IBM PC Troubleshooting & Repair
       by Robert C. Brenner

   13) the IBM PC Advanced Troubleshooting & Repair
       by Robert C. Brenner

   14) the IBM Personal Computer Troubleshooting & Repair;
       for the IBM PC, PC/XT and PC/AT
       by Robert C. Brenner

   15) 8088 Assembler Language Programming: The IBM PC
       by Willen & Krantz

   16) IBM ROM BIOS: Programmer's Quick Reference Series
       by Ray Duncan


floppy disk controller chips I know of
======================================
NEC                             765A/7265/72065/72066
Intel                           8272A
National Semiconductor          DP8473
Western Digital                 WD37C65A/B/C
Rockwell                        R6756
Hitachi                         HD68435
  "                            HD68a435   -- Ibm 3740 format only
Signetics                       8x330
Texas Instruments               990/303a ?? (not sure)
ACER                            ???
Hyndai                          ???
Toshiba                         ???