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S3C9228/P9228 I/O PORTS
9-13
Port 3 Interrupt Edge Selection Register (P3EDGE)
F8H, Page 0, R/W
.7 .6 .5 .4 .3 .2 .1 .0MSB LSB
P3EDGE bit configuration settings:
0
1
Rising edge detection
Falling edge detection
P3.1
(INTP)
P3.0
(INTP)
Not used
Figure 9-17. Port 3 Interrupt Edge Selection Register (P3EDGE)
Port 3 Pull-up Control Register (P3PUR)
F6H, Page 0, R/W
.7 .6 .5 .4 .3 .2 .1 .0MSB LSB
P3PUR bit configuration settings:
0
1
Enable pull-up resistor
Disable pull-up resistor
Not used P3.1 P3.0
Figure 9-18. Port 3 Pull-up Control Register (P3PUR)