Samsung 8-Bit CMOS Microcontroller Microcassette Recorder User Manual


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S3C9228/P9228 CONTROL REGISTERS
4-17
P0EDGE –Port 0 Interrupt Edge Selection Register EEH
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
RESETRESET Value
– – – – 0 0 0 0
Read/Write
– – – – R/W R/W R/W R/W
.7-.4
Not used for S3C9228/P9228
.3
P0.3's Interrupt Edge Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
.2
P0.2's Interrupt State Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
.1
P0.1's Interrupt State Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
.0
P0.0's Interrupt State Setting Bit
0 Falling edge interrupt
1 Rising edge interrupt
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