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FDC37M607 参数 Datasheet PDF下载

FDC37M607图片预览
型号: FDC37M607
PDF下载: 下载PDF文件 查看货源
内容描述: 增强的超级I / O控制器,红外支持 [ENHANCED SUPER I/O CONTROLLER WITH INFRARED SUPPORT]
分类和应用: 控制器
文件页数/大小: 182 页 / 634 K
品牌: SMSC [ SMSC CORPORATION ]
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interface pins in PS/2 and Model 30 modes. The  
SRA can be accessed at any time when in PS/2  
mode. In the PC/AT mode the data bus pins D0  
- D7 are held in a high impedance state for a  
read of address 3F0.  
STATUS REGISTER A (SRA)  
Address 3F0 READ ONLY  
This register is read-only and monitors the state  
of the FINTR pin and several disk  
PS/2 Mode  
7
6
5
4
3
2
1
0
INT  
nDRV2 STEP nTRK0 HDSEL nINDX nWP  
DIR  
PENDING  
RESET  
COND.  
0
N/A N/A N/A N/A  
0
0
0
BIT 0 DIRECTION  
BIT 4 nTRACK 0  
Active high status indicating the direction of  
head movement. A logic "1" indicates inward  
direction; a logic "0" indicates outward direction.  
Active low status of the TRK0 disk interface  
input.  
BIT 5 STEP  
BIT 1 nWRITE PROTECT  
Active high status of the STEP output disk  
interface output pin.  
Active low status of the WRITE PROTECT disk  
interface input. A logic "0" indicates that the disk  
is write protected.  
BIT 6 nDRV2  
Active low status of the DRV2 disk interface  
input pin, indicating that a second drive has  
been installed.  
BIT 2 nINDEX  
Active low status of the INDEX disk interface  
input.  
BIT 7 INTERRUPT PENDING  
Active high bit indicating the state of the Floppy  
Disk Interrupt output.  
BIT 3 HEAD SELECT  
Active high status of the HDSEL disk interface  
input. A logic "1" selects side 1 and a logic "0"  
selects side 0.  
13