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LPC47M14B-NC 参数 Datasheet PDF下载

LPC47M14B-NC图片预览
型号: LPC47M14B-NC
PDF下载: 下载PDF文件 查看货源
内容描述: 128 PIN ENGANCED超级I / O与LPC接口和USB集线器控制器 [128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB]
分类和应用: 控制器PC
文件页数/大小: 205 页 / 1208 K
品牌: SMSC [ SMSC CORPORATION ]
 浏览型号LPC47M14B-NC的Datasheet PDF文件第33页浏览型号LPC47M14B-NC的Datasheet PDF文件第34页浏览型号LPC47M14B-NC的Datasheet PDF文件第35页浏览型号LPC47M14B-NC的Datasheet PDF文件第36页浏览型号LPC47M14B-NC的Datasheet PDF文件第38页浏览型号LPC47M14B-NC的Datasheet PDF文件第39页浏览型号LPC47M14B-NC的Datasheet PDF文件第40页浏览型号LPC47M14B-NC的Datasheet PDF文件第41页  
BIT 2 - 7 RESERVED  
Should be set to a logical "0"  
PS/2 Model 30 Mode  
7
6
5
4
3
2
1
0
NOPREC DRATE DRATE  
SEL1  
1
SEL0  
0
RESET  
COND.  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
BIT 0 and 1 DATA RATE SELECT 0 and 1  
These bits determine the data rate of the floppy controller. See Table 9 for the appropriate values.  
BIT 2 NO PRECOMPENSATION  
This bit can be set by software, but it has no functionality. It can be read by bit 2 of the DSR when in Model 30 register  
mode. Unaffected by software reset.  
BIT 3 - 7 RESERVED  
Should be set to a logical "0"  
Table 10 shows the state of the DENSEL pin. The DENSEL pin is set high after a hardware reset and is unaffected by  
the DOR and the DSR resets.  
6.5.2  
STATUS REGISTER ENCODING  
During the Result Phase of certain commands, the Data Register contains data bytes that give the status of the  
command just executed.  
Table 13 – Status Register 0  
BIT NO.  
SYMBOL  
NAME  
DESCRIPTION  
7,6  
IC  
Interrupt Code 00 - Normal termination of command. The specified  
command was properly executed and completed without  
error.  
01 - Abnormal termination of command. Command  
execution was started, but was not successfully  
completed.  
10 - Invalid command. The requested command could  
not be executed.  
11 - Abnormal termination caused by Polling.  
5
4
SE  
EC  
Seek End  
The FDC completed a Seek, Relative Seek or  
Recalibrate command (used during a Sense Interrupt  
Command).  
Equipment  
Check  
The TRK0 pin failed to become a "1" after:  
1. 80 step pulses in the Recalibrate command.  
2. The Relative Seek command caused the FDC to  
step outward beyond Track 0.  
3
2
1,0  
Unused. This bit is always "0".  
Head Address The current head address.  
Drive Select The current selected drive.  
H
DS1,0  
SMSC DS – LPC47M14X  
Page 37  
Rev. 03/19/2001  
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