MCP23016 查看數據表（PDF） - Microchip Technology
零件编号
产品描述 (功能)
生产厂家
MCP23016 Datasheet PDF : 38 Pages
| |||
MCP23016
1.7.5 INTERRUPT CAPTURE REGISTERS
Two registers contain the value of the port that
generated the interrupt:
• INTCAP0 contains the value of GP0 at time of
GP0 change interrupt
• INTCAP1 contains the value of GP1 at time of
GP1 change interrupt
These registers are ‘read-only’ registers (A write to
these registers is ignored).
REGISTER 1-9: INTCAP0 - INTERRUPT CAPTURED VALUE FOR PORT REGISTER 0
R-x
R-x
R-x
R-x
R-x
R-x
R-x
R-x
ICP0.7 ICP0.6 ICP0.5 ICP0.4 ICP0.3 ICP0.2 ICP0.1 ICP0.0
bit 7
bit 0
bit 7-0
ICP0.0:ICP0.7: Reflects the logic level on the GP0 pins at the time of interrupt due to pin
change
1 = Logic ‘1’
0 = Logic ‘0’
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
REGISTER 1-10: INTCAP1 - INTERRUPT CAPTURED VALUE FOR PORT REGISTER 1
R-x
R-x
R-x
R-x
R-x
R-x
R-x
R-x
ICP1.7 ICP1.6 ICP1.5 ICP1.4 ICP1.3 ICP1.2 ICP1.1 ICP1.0
bit 7
bit 0
bit 7-0
ICP1.0:ICP1.7: Reflects the logic level on the GP1 pins at the time of interrupt due to pin
change
1 = Logic ‘1’
0 = Logic ‘0’
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
DS20090C-page 10
© 2007 Microchip Technology Inc.
Share Link: 