参数资料
型号: MCP23S18T-E/SP
元件分类: 微控制器/微处理器
英文描述: PIA-GENERAL PURPOSE, PDIP28
封装: 0.300 INCH, PLASTIC, SPDIP-28
文件页数: 19/56页
文件大小: 738K
代理商: MCP23S18T-E/SP
MCP23018/MCP23S18
DS22103A-page 26
2008 Microchip Technology Inc.
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 1-10:
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.
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