參數資料
型號: MCP23S18-E/SO
元件分類: 微控制器/微處理器
英文描述: PIA-GENERAL PURPOSE, PDSO28
封裝: 0.300 INCH, PLASTIC, SOIC-28
文件頁數: 15/56頁
文件大小: 738K
代理商: MCP23S18-E/SO
MCP23018/MCP23S18
DS22103A-page 22
2008 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 1-7:
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 INTCON and GPINTEN.
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