參數(shù)資料
型號(hào): MCP23008T-E/SS
廠商: Microchip Technology
文件頁(yè)數(shù): 4/44頁(yè)
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 8B 20SSOP
標(biāo)準(zhǔn)包裝: 1,600
接口: I²C
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時(shí)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: 表面貼裝
封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 20-SSOP
包裝: 帶卷 (TR)
包括: POR
配用: GPIODM-KPLCD-ND - BOARD DEMO LCD GPIO EXP KEYPAD
其它名稱: Q2170569
MCP23008/MCP23S08
DS21919E-page 12
2007 Microchip Technology Inc.
1.6.3
INTERRUPT-ON-CHANGE
CONTROL (GPINTEN) REGISTER
The GPINTEN register controls the interrupt-on-
change feature for each pin.
If a bit is set, the corresponding pin is enabled for
interrupt-on-change. The DEFVAL and INTCON
registers must also be configured if any pins are
enabled for interrupt-on-change.
REGISTER 1-3:
GPINTEN – INTERRUPT-ON-CHANGE PINS (ADDR 0x02)
R/W-0
GPINT7
GPINT6
GPINT5
GPINT4
GPINT3
GPINT2
GPINT1
GPINT0
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
GPINT7:GPINT0: General purpose I/O interrupt-on-change bits <7:0>
1 = Enable GPIO input pin for interrupt-on-change event.
0 = Disable GPIO input pin for interrupt-on-change event.
Refer to INTCON and GPINTEN.
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