參數(shù)資料
型號(hào): MCP23017-E/SO
元件分類: 微控制器/微處理器
英文描述: 16 I/O, PIA-GENERAL PURPOSE, PDSO28
封裝: 7.50 MM, PLASTIC, SOIC-28
文件頁(yè)數(shù): 5/48頁(yè)
文件大?。?/td> 915K
代理商: MCP23017-E/SO
2007 Microchip Technology Inc.
DS21952B-page 13
MCP23017/MCP23S17
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 (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.
相關(guān)PDF資料
PDF描述
MCP23S17T-E/SS 16 I/O, PIA-GENERAL PURPOSE, PDSO28
MCP23017T-E/SO 16 I/O, PIA-GENERAL PURPOSE, PDSO28
MCP23017-E/ML 16 I/O, PIA-GENERAL PURPOSE, PQCC28
MCP23S17-E/ML 16 I/O, PIA-GENERAL PURPOSE, PQCC28
MCP23S18-E/SO PIA-GENERAL PURPOSE, PDSO28
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