參數(shù)資料
型號: MCP23S08-E/SS
元件分類: 微控制器/微處理器
英文描述: 8 I/O, PIA-GENERAL PURPOSE, PDSO20
封裝: 0.209 INCH, PLASTIC, SSOP-20
文件頁數(shù): 8/44頁
文件大?。?/td> 649K
代理商: MCP23S08-E/SS
MCP23008/MCP23S08
DS21919E-page 16
2007 Microchip Technology Inc.
1.6.7
PULL-UP RESISTOR
CONFIGURATION (GPPU)
REGISTER
The GPPU register controls the pull-up resistors for the
port pins. If a bit is set and the corresponding pin is
configured as an input, the corresponding port pin is
internally pulled up with a 100 k
Ω resistor.
REGISTER 1-7:
GPPU – GPIO PULL-UP RESISTOR REGISTER (ADDR 0x06)
R/W-0
PU7
PU6
PU5
PU4
PU3
PU2
PU1
PU0
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
PU7:PU0: These bits control the weak pull-up resistors on each pin (when configured as an input)
<7:0>.
1 = Pull-up enabled.
0 = Pull-up disabled.
相關(guān)PDF資料
PDF描述
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
MCP23S09T-E/SO 8 I/O, PIA-GENERAL PURPOSE, PDSO18
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