參數(shù)資料
型號: MCP23S17T-E/ML
元件分類: 微控制器/微處理器
英文描述: 16 I/O, PIA-GENERAL PURPOSE, PQCC28
封裝: 6 X 6 MM, PLASTIC, QFN-28
文件頁數(shù): 11/48頁
文件大小: 915K
代理商: MCP23S17T-E/ML
2007 Microchip Technology Inc.
DS21952B-page 19
MCP23017/MCP23S17
1.6.7
PULL-UP RESISTOR
CONFIGURATION 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
MCP23017-E/SO 16 I/O, PIA-GENERAL PURPOSE, PDSO28
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
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