參數(shù)資料
型號: MCP23S09T-E/SO
廠商: Microchip Technology
文件頁數(shù): 9/50頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER SPI 8B 18SOIC
標準包裝: 1,100
接口: SPI
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時鐘: 10MHz
電源電壓: 1.8 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 18-SOIC(0.295",7.50mm 寬)
供應商設備封裝: 18-SOIC
包裝: 帶卷 (TR)
2009 Microchip Technology Inc.
DS22121B-page 17
MCP23009/MCP23S09
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
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: Controls 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
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