參數(shù)資料
型號(hào): MCP23008-E/P
元件分類: 微控制器/微處理器
英文描述: 8 I/O, PIA-GENERAL PURPOSE, PDIP18
封裝: 0.300 INCH, PLASTIC, DIP-18
文件頁數(shù): 2/44頁
文件大?。?/td> 649K
代理商: MCP23008-E/P
MCP23008/MCP23S08
DS21919E-page 10
2007 Microchip Technology Inc.
1.6.1
I/O DIRECTION (IODIR) REGISTER
Controls the direction of the data I/O.
When a bit is set, the corresponding pin becomes an
input. When a bit is clear, the corresponding pin
becomes an output.
REGISTER 1-1:
IODIR – I/O DIRECTION REGISTER (ADDR 0x00)
R/W-1
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
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
IO7:IO0: These bits control the direction of data I/O <7:0>
1 = Pin is configured as an input.
0 = Pin is configured as an output.
相關(guān)PDF資料
PDF描述
MCP23008T-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23008-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23S08T-E/SO 8 I/O, PIA-GENERAL PURPOSE, PDSO18
MCP23S08-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23008-E/SO 8 I/O, PIA-GENERAL PURPOSE, PDSO18
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