參數(shù)資料
型號: MCP23009-E/SO
廠商: Microchip Technology
文件頁數(shù): 13/50頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 8B 18SOIC
標(biāo)準(zhǔn)包裝: 42
接口: I²C
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時(shí)鐘: 3.4MHz
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(yīng)商設(shè)備封裝: 18-SOIC
包裝: 管件
產(chǎn)品目錄頁面: 684 (CN2011-ZH PDF)
MCP23009/MCP23S09
DS22121B-page 20
2009 Microchip Technology Inc.
1.6.5
INTERRUPT CONTROL REGISTER
The INTCON register controls how the associated pin
value is compared for the interrupt-on-change feature.
If a bit is set, the corresponding I/O pin is compared
against the associated bit in the DEFVAL register. If a
bit value is clear, the corresponding I/O pin is compared
against the previous value.
REGISTER 1-5:
INTCON – INTERRUPT-ON-CHANGE CONTROL REGISTER
R/W-0
IOC7
IOC6
IOC5
IOC4
IOC3
IOC2
IOC1
IOC0
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
IOC7:IOC0: Controls how the associated pin value is compared for interrupt-on-change <7:0>.
1
= Pin value is compared against the associated bit is DEFVAL register
0
= Pin value is compared against the previous pin value
Refer to DEFVAL and GPINTEN.
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