参数资料
型号: MCP23017-E/SS
厂商: Microchip Technology
文件页数: 13/48页
文件大小: 0K
描述: IC I/O EXPANDER I2C 16B 28SSOP
产品培训模块: GPIO Expanders
标准包装: 47
接口: I²C
输入/输出数: 16
中断输出:
频率 - 时钟: 1.7MHz
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 管件
产品目录页面: 684 (CN2011-ZH PDF)
配用: MCP23X17EV-ND - BOARD EVAL FOR MCP23X17
GPIODM-KPLCD-ND - BOARD DEMO LCD GPIO EXP KEYPAD
MCP23017/MCP23S17
DS21952B-page 20
2007 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 1-8:
INTF – INTERRUPT FLAG REGISTER (ADDR 0x07)
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: These bits reflect 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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