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参数资料
型号： MCP23009-E/MG
元件分类： 微控制器/微处理器
英文描述： 8 I/O, PIA-GENERAL PURPOSE, PQCC16
封装： 3 X 3 MM, 0.90 MM HEIGHT, PLASTIC, QFN-16
文件页数： 16/50页
文件大小： 607K
代理商： MCP23009-E/MG
2009 Microchip Technology Inc.
DS22121B-page 23
MCP23009/MCP23S09
1.6.8
INTERRUPT FLAG REGISTER
The INTF register reflects the interrupt condition on the
port pins of any pin that is enabled for interrupts via the
GPINTEN register. A ‘set’ bit indicates that the
associated pin caused the interrupt.
This register is ‘read only’. Writes to this register will be
ignored.
REGISTER 1-8:
INTF – INTERRUPT FLAG REGISTER
R-0
INT7
INT6
INT5
INT4
INT3
INT2
INT1
INT0
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
INT7:INT0: Reflects the interrupt condition on the port. Will reflect the change only if interrupts are
enabled (GPINTEN) <7:0>.
1
= Pin caused interrupt
0
= Interrupt not pending
相关PDF资料
PDF描述
MCP23009-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23S09T-E/SS 8 I/O, PIA-GENERAL PURPOSE, PDSO20
MCP23S09T-E/SO 8 I/O, PIA-GENERAL PURPOSE, PDSO18
MCP23S09-E/MG 8 I/O, PIA-GENERAL PURPOSE, PQCC16
MCP23S09T-E/MG 8 I/O, PIA-GENERAL PURPOSE, PQCC16
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