W83977A Winbond Electronics Corp America, W83977A Datasheet - Page 112

• Manufacturer Part Number: W83977A
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

CRF4 (Default 0x00)
FDD0 Selection:
CRF5 (Default 0x00)
FDD1 Selection: Same as FDD0 of CRF4.
Bit 7: Reserved.
Bit 6: Precomp. Disable.
Bit 5: Reserved.
Bit 4 - 3: DRTS1, DRTS0: Data Rate Table select (Refer to TABLE A).
Bit 2: Reserved.
Bit 1:0:
= 1
= 0
= 00 Select Regular drives and 2.88 format
= 01
= 10 2 Meg Tape
= 11 Reserved
DMOD0, DMOD1
Disable FDC Precompensation.
Enable FDC Precompensation.
Specifical application
: Drive Model select (Refer to TABLE B).
-101.1 -
Publication Release Date: July 1997
W83977TF
PRELIMINARY
Revision 0.61