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參數資料
型號: W83637HF
廠商: WINBOND ELECTRONICS CORP
英文描述: LPC I/O
中文描述: LPC的I / O
文件頁數: 113/149頁
文件大小: 936K
代理商: W83637HF
W83637HF
Publication Release Date: June 25, 2003
- 108 -
Revision 1.3
CRF1 (Default 0x00)
Bit 7 - 6 : Boot Floppy
= 00 FDD A
= 01 FDD B
= 10 FDD C
= 11 FDD D
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
= 00 Normal (Default)
= 01 Normal
= 10 1 ( Forced to logic 1)
= 11 0 ( Forced to logic 0)
Bit 1
: DISFDDWR
= 0 Enable FDD write.
= 1 Disable FDD write(forces pins WE, WD stay high).
Bit 0
: SWWP
= 0 Normal, use WP to determine whether the FDD is write protected or not.
= 1 FDD is always write-protected.
CRF2 (Default 0xFF)
Bit 7 - 6 : FDD D Drive Type
Bit 5 - 4 : FDD C Drive Type
Bit 3 - 2 : FDD B Drive Type
Bit 1 - 0 : FDD A Drive Type
CRF4 (Default 0x00)
FDD0 Selection:
Bit 7
: Reserved.
Bit 6
: Pre-comp. Disable.
= 1 Disable FDC Pre-compensation.
= 0 Enable FDC Pre-compensation.
Bit 5
: Reserved.
Bit 4 - 3 : DRTS1, DRTS0: Data Rate Table select (Refer to TABLE A).
= 00 Select Regular drives and 2.88 format
= 01
3-mode drive
= 10 2 Meg Tape
= 11 Reserved
Bit 2
: Reserved.
Bit 1:0
: DTYPE0, DTYPE1: Drive Type select (Refer to TABLE B).
相關PDF資料
PDF描述
W83637HF-AW LPC I/O
W83697HF WINBOND I/O
W83697 WINBOND I/O
W83697F WINBOND I/O
W83697SF WINBOND I/O
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