參數(shù)資料
型號(hào): MCP23S09-E/P
廠商: Microchip Technology
文件頁數(shù): 10/50頁
文件大小: 0K
描述: IC I/O EXPANDER SPI 8B 18DIP
標(biāo)準(zhǔn)包裝: 25
接口: SPI
輸入/輸出數(shù): 8
中斷輸出:
頻率 - 時(shí)鐘: 10MHz
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(yīng)商設(shè)備封裝: 18-PDIP
包裝: 管件
產(chǎn)品目錄頁面: 684 (CN2011-ZH PDF)
MCP23009/MCP23S09
DS22121B-page 18
2009 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 1-3:
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
Refer to INTCON and DEFVAL.
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