S3P9228 Datasheet, PDF (293/462 Pages) Samsung semiconductor – 8-BIT CMOS MICROCONTROLLERS USERS MANUAL

S3C9228/P9228
CONTROL REGISTERS
P1EDGE –Port 1 Interrupt Edge Selection Register
F2H
Bit Identifier
RESET Value
Read/Write
.7
.6
.5
.4
.3
.2
.1
.0
–
–
–
–
0
0
0
0
–
–
–
–
R/W
R/W
R/W
R/W
.7-.4
Not used for S3C9228/P9228
.3
P1.3's Interrupt Edge Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
.2
P1.2's Interrupt State Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
.1
P1.1's Interrupt State Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
.0
P1.0's Interrupt State Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
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