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FDC37C669_07 参数 Datasheet PDF下载

FDC37C669_07图片预览
型号: FDC37C669_07
PDF下载: 下载PDF文件 查看货源
内容描述: 98/99 PC兼容的超级I / O软盘控制器,红外支持 [PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support]
分类和应用: 控制器PC
文件页数/大小: 164 页 / 575 K
品牌: SMSC [ SMSC CORPORATION ]
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FDD Interface Pins  
used for local logic control or part  
programming are unaffected. Table 47 depicts  
the state of the floppy disk drive interface pins in  
the powerdown state.  
All pins in the FDD interface which can be  
connected directly to the floppy disk drive itself  
are either DISABLED or TRISTATED. Pins  
Table 45 - State of Floppy Disk Drive Interface Pins in Powerdown  
FDD Pins  
State in Auto Powerdown  
Input Pins  
RDATA  
WP  
Input  
Input  
Input  
Input  
Input  
Input  
TRK0  
INDX  
DRV2  
DSKCHG  
Output Pins  
MOTEN[0:3]  
DS[0:3}  
DIR  
Tristated  
Tristated  
Active  
STEP  
Active  
WRDATA  
WE  
Tristated  
Tristated  
Active  
HDSEL  
DENSEL  
DRATE[0:1]  
Active  
Active  
112  
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