參數(shù)資料
型號: MCP23018-E/MJ
廠商: Microchip Technology
文件頁數(shù): 19/56頁
文件大?。?/td> 0K
描述: IC I/O EXPANDER I2C 16B 24QFN
標(biāo)準(zhǔn)包裝: 91
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: 24-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 24-QFN 裸露焊盤(4x4)
包裝: 管件
產(chǎn)品目錄頁面: 684 (CN2011-ZH PDF)
MCP23018/MCP23S18
DS22103A-page 26
2008 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 1-10:
INTF – INTERRUPT FLAG REGISTER
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: Reflects 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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