參數(shù)資料
型號: MCP23S08
廠商: Microchip Technology Inc.
英文描述: 8-Bit I/O Expander with Serial Interface
中文描述: 8位的I / O串行接口擴(kuò)展
文件頁數(shù): 10/40頁
文件大?。?/td> 498K
代理商: MCP23S08
MCP23008/MCP23S08
DS21919B-page 10
2005 Microchip Technology Inc.
1.6.3
INTERRUPT-ON-CHANGE
CONTROL (GPINTEN) REGISTER
The GPINTEN register controls the interrupt-on-
change feature for each pin.
If a bit is set, the corresponding pin is enabled for
interrupt-on-change. The DEFVAL and INTCON
registers must also be configured if any pins are
enabled for interrupt-on-change.
REGISTER 1-3:
GPINTEN – INTERRUPT-ON-CHANGE PINS (ADDR 0x02)
R/W-0
R/W-0
R/W-0
GPINT7
GPINT6
GPINT5
bit 7
R/W-0
GPINT4
R/W-0
GPINT3
R/W-0
GPINT2
R/W-0
GPINT1
R/W-0
GPINT0
bit 0
bit 7-0
GPINT7:GPINT0:
General purpose I/O interrupt-on-change bits <7:0>.
1
= Enable GPIO input pin for interrupt-on-change event.
0
= Disable GPIO input pin for interrupt-on-change event.
Refer to INTCON and GPINTEN.
Legend:
R = Readable bit
- n = Value at POR
W = Writable bit
1
’ = Bit is set
U = Unimplemented bit, read as ‘
0
0
’ = Bit is cleared
x = Bit is unknown
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