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參數(shù)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(shù): 112/149頁
文件大小: 936K
代理商: W83637HF
W83637HF
Publication Release Date: June 25, 2003
- 107 -
Revision 1.3
CR74 (Default 0x02 if PNPCSV = 0 during POR, default 0x04 otherwise)
Bit 7 - 3 : Reserved.
Bit 2 - 0 : These bits select DRQ resource for FDC.
= 0x00 DMA0
= 0x01 DMA1
= 0x02 DMA2
= 0x03 DMA3
= 0x04 - 0x07 No DMA active
CRF0 (Default 0x0E)
FDD Mode Register
Bit 7
: FIPURDWN
This bit controls the internal pull-up resistors of the FDC input pins RDATA, INDEX, TRAK0,
DSKCHG, and WP.
= 0 The internal pull-up resistors of FDC are turned on.(Default)
= 1 The internal pull-up resistors of FDC are turned off.
Bit 6
: INTVERTZ
This bit determines the polarity of all FDD interface signals.
= 0 FDD interface signals are active low.
= 1 FDD interface signals are active high.
Bit 5
: DRV2EN (PS2 mode only)
When this bit is a logic 0, indicates a second drive is installed and is reflected in status register A.
Bit 4
: Swap Drive 0, 1 Mode
= 0 No Swap (Default)
= 1 Drive and Motor select 0 and 1 are swapped.
Bit 3 - 2 :Interface Mode
= 11 AT Mode (Default)
= 10 (Reserved)
= 01 PS/2
= 00 Model 30
Bit 1
: FDC DMA Mode
= 0 Burst Mode is enabled
= 1 Non-Burst Mode (Default)
Bit 0
: Floppy Mode
= 0 Normal Floppy Mode (Default)
= 1 Enhanced 3-mode FDD
相關(guān)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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W83637HF_06 制造商:WINBOND 制造商全稱:Winbond 功能描述:LPC I/O
W83637HF-AW 制造商:WINBOND 制造商全稱:Winbond 功能描述:LPC I/O
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