MCP23017-ESLASHSS datasheet(20/48 Pages) MICROCHIP

Part #	MCP23017-E/SS

Description	16-Bit I/O Expander with Serial Interface

PDF	48 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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20 / 48 page

MCP23017/MCP23S17

DS21952B-page 20

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.

INTF – INTERRUPT FLAG REGISTER (ADDR 0x07)

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: These bits reflect 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.

MCP23017-E/SS Datasheet(PDF) 20 Page - Microchip Technology