参数资料
型号: MCP23016-I/SP
厂商: Microchip Technology
文件页数: 37/38页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 28SDIP
标准包装: 15
接口: I²C
输入/输出数: 16
中断输出:
频率 - 时钟: 400kHz
电源电压: 2 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 28-DIP(0.300",7.62mm)
供应商设备封装: 28-DIP
包装: 管件
包括: POR
产品目录页面: 684 (CN2011-ZH PDF)
MCP23016
DS20090C-page 8
2007 Microchip Technology Inc.
1.7.3
INPUT POLARITY REGISTERS
These registers allow the user to configure the polarity
of the input port data (GP0 and GP1). If a bit in this reg-
ister is set, the corresponding input port (GPn) data bit
polarity will be inverted.
IPOL0 (controls the polarity of GP0)
IPOL1 (controls the polarity of GP1)
REGISTER 1-5:
IPOL0 - INPUT POLARITY PORT REGISTER 0
REGISTER 1-6:
IPOL1 - INPUT POLARITY PORT REGISTER 1
R/W-0
IGP0.7
IGP0.6
IGP0.5
IGP0.4
IGP0.3
IGP0.2
IGP0.1
IGP0.0
bit 7
bit 0
bit 7-0
IGP0.0:IGP0.7: Controls the polarity inversion for the input pins
1
= Corresponding GP0 bit is inverted
0
= Corresponding GP0 bit is not inverted
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
R/W-0
IGP1.7
IGP1.6
IGP1.4
IGP1.3
IGP1.2
IGP1.1
IGP1.0
bit 7
bit 0
bit 7-0
IGP1.0:IGP1.7: Controls the polarity inversion for the input pins
1
= Corresponding GP1 bit is inverted
0
= Corresponding GP1 bit is not inverted
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
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