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: 82/148页
文件大小: 1733K
代理商: PC87393F-VJG
2.0 Device Architecture and Configuration (Continued)
39
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2.10.3
SuperI/O Configuration 2 Register (SIOCF2)
Location:
Index 22h
Type:
R/W
Bit
7654
3
210
Name
Pin 87
Function
Select
Pins 95-90
Function
Select
Pins 81-74
Function
Select
Pins 3-1 and 100-96
Function
Select
Reset
Strap
Bit
Description
7-6
Pin 87 Function Select
Bits
Function
7 6
0 0
GPIO26 (default for all XCNF2-0 values, except x01)
0 1
XA6 (default when XCNF2-0 is x01)
1 0
PIRQA
1 1
XSTB2
5-4
Pins 95-90 Function Select
Bits
Function
5 4
0 0
GPIO20-24, XSTB1 (default when XCNF2-0 is x00)
0 1
XA5-0 (default when XCNF2-0 is x01)
1 0
XA3-0, XSTB0, XSTB1 (default for all XCNF2-0 values, except x00 and x01)
1 1
Reserved
3-2
Pins 81-74 Function Select1
Bits
Function
3 2
0 0
GPIO10-17 (default when XCNF2-0 is x00, 110 or 111)
0 1
XA12-19 (default when XCNF2-0 is x01, 010 or 011)
1 0
JOYABTN1, JOYBBTN1, JOYAY, JOYBY, JOYAX, JOYBX, JOYABTN0, JOYBBTN0
1 1
RI2, DTR2_BOUT2, CTS2, SOUT2, RTS2, SIN2, DSR2, DCD2
1.
In the PC87391, these pins are pulled up after reset by an internal pull-up resistor. Software should set this
eld to 11 to enable the UART 2 function.
1-0
Pins 3-1 and 100-96 Function Select
Bits
Function
1 0
0 0
GPIO00-07 (default when XCNF2-0 is x00)
0 1
XD0-7 (default for all XCNF2-0 values, except x00)
1 0
JOYABTN1, JOYBBTN1, JOYAY, JOYBY, JOYAX, JOYBX, JOYABTN0, JOYBBTN0
1 1
Reserved
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