参数资料
型号: MCP23009-E/MG
元件分类: 微控制器/微处理器
英文描述: 8 I/O, PIA-GENERAL PURPOSE, PQCC16
封装: 3 X 3 MM, 0.90 MM HEIGHT, PLASTIC, QFN-16
文件页数: 9/50页
文件大小: 607K
代理商: MCP23009-E/MG
2009 Microchip Technology Inc.
DS22121B-page 17
MCP23009/MCP23S09
1.6.2
INPUT POLARITY REGISTER
This 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
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: Controls 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
PDF描述
MCP23009-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23S09T-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23S09T-E/SO 8 I/O, PIA-GENERAL PURPOSE, PDSO18
MCP23S09-E/MG 8 I/O, PIA-GENERAL PURPOSE, PQCC16
MCP23S09T-E/MG 8 I/O, PIA-GENERAL PURPOSE, PQCC16
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