參數資料
型號: MCP23008-E/P
廠商: Microchip Technology
文件頁數: 10/44頁
文件大小: 0K
描述: IC I/O EXPANDER I2C 8B 18DIP
產品培訓模塊: GPIO Expanders
標準包裝: 25
接口: I²C
輸入/輸出數: 8
中斷輸出:
頻率 - 時鐘: 1.7MHz
電源電壓: 1.8 V ~ 5.5 V
工作溫度: -40°C ~ 125°C
安裝類型: 通孔
封裝/外殼: 18-DIP(0.300",7.62mm)
供應商設備封裝: 18-PDIP
包裝: 管件
包括: POR
產品目錄頁面: 684 (CN2011-ZH PDF)
配用: GPIODM-KPLCD-ND - BOARD DEMO LCD GPIO EXP KEYPAD
MCP23008/MCP23S08
DS21919E-page 18
2007 Microchip Technology Inc.
1.6.9
INTERRUPT CAPTURE (INTCAP)
REGISTER
The INTCAP register captures the GPIO port value at
the time the interrupt occurred. The register is ‘read-
only’ and is updated only when an interrupt occurs. The
register will remain unchanged until the interrupt is
cleared via a read of INTCAP or GPIO.
REGISTER 1-9:
INTCAP – INTERRUPT CAPTURED VALUE FOR PORT REGISTER (ADDR 0x08)
R-x
ICP7
ICP6
ICP5
ICP4
ICP3
ICP2
ICP1
ICP0
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
ICP7:ICP0: These bits reflect the logic level on the port pins at the time of interrupt due to pin change
<7:0>
1 = Logic-high.
0 = Logic-low.
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