w83627ef Winbond Electronics Corp America, w83627ef Datasheet - Page 106

• Manufacturer Part Number: w83627ef
• Description: Lpc Super I/o For Desktop & Server
• Manufacturer: Winbond Electronics Corp America

Continued.
CR F2h. (Default FFh)
CR F4h. (Default 00h)
CR F5h. (Default 00h)
7~6
5~4
3~2
1~0
4~3
1~0
7~0
BIT
BIT
BIT
BIT
1
0
7
6
5
2
Reserved.
Reserved.
Reserved.
READ / WRITE
READ / WRITE
READ / WRITE
READ / WRITE
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
R / W
DISFDDWR =>
0: Enable FDD write.
1: Disable FDD write (forces pins WE, WD stay high).
SWWP =>
0: Normal, use WP to determine whether the FDD is write protected or
not.
1: FDD is always write-protected.
FDD D Drive Type.
FDD C Drive Type.
FDD B Drive Type.
FDD A Drive Type.
0: Enable FDC Pre-compensation.
1: Disable FDC Pre-compensation.
Data Rate Table selection (Refer to TABLE A).
00: Select regular drives and 2.88 format.
01: 3-mode drive.
Drive Type selection (Refer to TABLE B).
Same as FDD0 of CR F5h.
W83627EHF/EF, W83627EHG/EG
- 100 -
10: 2 Meg Tape.
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
11: Reserved.