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W83627HG-AW 参数 Datasheet PDF下载

W83627HG-AW图片预览
型号: W83627HG-AW
PDF下载: 下载PDF文件 查看货源
内容描述: WINBOND LPC I / O [Winbond LPC I/O]
分类和应用: PC时钟
文件页数/大小: 131 页 / 1020 K
品牌: WINBOND [ WINBOND ]
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W83627HF/ F/ HG/ G  
CRF0 Default 0x0E)  
FDD Mode Register  
BIT  
DESCRIPTION  
7
FIPURDWN  
This bit controls the internal pull-up resistors of the FDC input pins RDATA, INDEX,  
TRAK0, DSKCHG, and WP.  
0The internal pull-up resistors of FDC are turned on.Default)  
1The internal pull-up resistors of FDC are turned off.  
6
INTVERTZ  
This bit determines the polarity of all FDD interface signals.  
0FDD interface signals are active low.  
1FDD interface signals are active high.  
DRV2EN PS2 mode only)  
5
4
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  
0No Swap Default)  
1Drive and Motor sel 0 and 1 are swapped.  
3 - 2 Interface Mode  
11AT Mode Default)  
10Reserved  
01PS/2  
00Model 30  
1
0
FDC DMA Mode  
0Burst Mode is enabled  
1Non-Burst Mode Default)  
Floppy Mode  
0Normal Floppy Mode Default)  
1Enhanced 3-mode FDD  
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