w83627sf Winbond Electronics Corp America, w83627sf Datasheet - Page 118
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w83627sf
Manufacturer Part Number
w83627sf
Description
Winbond I/o
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W83627SF.pdf
(147 pages)
- Current page: 118 of 147
- Download datasheet (873Kb)
CRF1 (Default 0x00)
Bit 5
Bit 4
Bit 3 - 2 :Interface Mode
Bit 1
Bit 0
Bit 7 - 6 : Boot Floppy
Bit 5, 4 : Media ID1, Media ID0. These bits will be reflected on FDC's Tape Drive Register bit 7, 6.
Bit 3 - 2 : Density Select
Bit 1
Bit 0
: DRV2EN (PS2 mode only)
When this bit is a logic 0, indicates a second drive is installed and is reflected in status
register A.
: Swap Drive 0, 1 Mode
= 0
= 1
= 11
= 10 (Reserved)
= 01 PS/2
= 00 Model 30
: FDC DMA Mode
= 0 Burst Mode is enabled
= 1 Non-Burst Mode (Default)
: Floppy Mode
= 0 Normal Floppy Mode (Default)
= 1 Enhanced 3-mode FDD
= 00 FDD A
= 01 FDD B
= 10 FDD C
= 11 FDD D
= 00 Normal (Default)
= 01 Normal
= 10 1 ( Forced to logic 1)
= 11 0 ( Forced to logic 0)
: 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.
No Swap (Default)
Drive and Motor sel 0 and 1 are swapped.
AT Mode (Default)
- 111 -
Publication Release Date: Nov. 2000
PRELIMINARY
W83627SF
Revision 0.60
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