參數(shù)資料
型號: MCP23018T-E/SO
廠商: Microchip Technology
文件頁數(shù): 13/56頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 28SOIC
標(biāo)準(zhǔn)包裝: 1,600
接口: I²C
輸入/輸出數(shù): 16
中斷輸出:
頻率 - 時鐘: 3.4MHz
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: 28-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 28-SOIC
包裝: 帶卷 (TR)
MCP23018/MCP23S18
DS22103A-page 20
2008 Microchip Technology Inc.
1.6.3
INTERRUPT-ON-CHANGE
CONTROL 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 1-5:
GPINTEN – INTERRUPT-ON-CHANGE PINS
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 pins <7:0>
1
= Enable GPIO input pin for interrupt-on-change event
0
= Disable GPIO input pin for interrupt-on-change event.
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