Samsung S3C9228/P9228, 8-Bit CMOS Microcontroller user manual P3CON Port 3 Control Register

CONTROL REGISTERSS3C9228/P9228

P3CON – Port 3 Control Register F5H

Bit Identifier

RESET Value

Read/Write

.7-.4

.3-.2

.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

P3.1/SEG2/INTP Configuration Bits

0 0 Schmitt trigger input

01 Push-pull output

10 N-channel open-drain output

1 1 Not available

.1-.0	P3.0/SEG3/INTP Configuration Bits
	0	0	Schmitt trigger input
	0	1	Push-pull output
	1	0	N-channel open-drain output
	1	1	Not available

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