参数资料
型号: MCP23S08-E/SS
元件分类: 微控制器/微处理器
英文描述: 8 I/O, PIA-GENERAL PURPOSE, PDSO20
封装: 0.209 INCH, PLASTIC, SSOP-20
文件页数: 3/44页
文件大小: 649K
代理商: MCP23S08-E/SS
2007 Microchip Technology Inc.
DS21919E-page 11
MCP23008/MCP23S08
1.6.2
INPUT POLARITY (IPOL) REGISTER
The IPOL register allows the user to configure the
polarity on the corresponding GPIO port bits.
If a bit is set, the corresponding GPIO register bit will
reflect the inverted value on the pin.
REGISTER 1-2:
IPOL – INPUT POLARITY PORT REGISTER (ADDR 0x01)
R/W-0
IP7
IP6
IP5
IP4
IP3
IP2
IP1
IP0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
IP7:IP0: These bits control the polarity inversion of the input pins <7:0>
1 = GPIO register bit will reflect the opposite logic state of the input pin.
0 = GPIO register bit will reflect the same logic state of the input pin.
相关PDF资料
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MCP23008-E/SO 8 I/O, PIA-GENERAL PURPOSE, PDSO18
MCP23009-E/MG 8 I/O, PIA-GENERAL PURPOSE, PQCC16
MCP23009-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23S09T-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
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