参数资料
型号: PC87393F-VJG
厂商: NATIONAL SEMICONDUCTOR CORP
元件分类: 外设及接口
英文描述: 100-Pin LPC SuperI/O Devices for Portable Applications
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封装: TQFP-100
文件页数: 85/148页
文件大小: 1733K
代理商: PC87393F-VJG
2.0 Device Architecture and Configuration (Continued)
41
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2.10.5
SuperI/O Configuration 4 Register (SIOCF4)
Location:
Index 24h
Type:
R/W
Bit
76543210
Name
Pin 5
Function
Select
Pin 19
Function
Select
Pin 73
Function
Select
Pin 72
Function
Select
Pin 6
Function
Select
Reset
Strap
0
1
Strap
0
Bit
Description
7-6
Pin 5 Function Select1
Bits
Function
7 6
0 0
GPIO34 (default when XCNF2-0 is x00)
0 1
XRD (default for all XCNF2-0 values except x00)
1 0
WDO
1 1
Reserved
1.
In the PC87391, this pin is pulled up after reset by an internal pull-up resistor. Software should set this eld as
appropriate to enable the required Legacy function.
5
Pin 19 Function Select1
0: GPIO35 (default)
1: SMI
4-3
Pin 73 Function Select1
Bits
Function
4 3
0 0
XIOWR
0 1
XCS1 (default)
1 0
MTR1 (signal output is inactive, 1, when PPM mode is enabled)
1 1
DRATE0
2-1
Pin 72 Function Select1
Bits
Function
2 1
0 0
GPIO25 (default when XCNF2-0 is x00)
0 1
XCS0 (default for all XCNF2-0 values except x00, 010 and 110)
1 0
XRDY (default when XCNF2-0 is 010 or 110)
1 1
DR1 (signal output is inactive, 1, when PPM mode is enabled)
0
Pin 6 Function Select1
0: GPIO36 (default)
1: CLKRUN
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