Samsung 8-Bit CMOS Microcontroller user manual P1EDGE -Port 1 Interrupt Edge Selection Register

S3C9228/P9228CONTROL REGISTERS

P1EDGE –Port 1 Interrupt Edge Selection Register F2H

Bit Identifier

RESET Value

Read/Write

.7-.4

.3

.2

.1

.0

.7	.6	.5	.4	.3	.2	.1	.0
–	–	–	–	0	0	0	0
–	–	–	–	R/W	R/W	R/W	R/W

Not used for S3C9228/P9228

P1.3's Interrupt Edge Setting Bit

0Falling edge interrupt

1Rising edge interrupt

P1.2's Interrupt State Setting Bit

0Falling edge interrupt

1Rising edge interrupt

P1.1's Interrupt State Setting Bit

0Falling edge interrupt

1Rising edge interrupt

P1.0's Interrupt State Setting Bit

0Falling edge interrupt

1Rising edge interrupt

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