Samsung S3C9228/P9228, 8-Bit CMOS Microcontroller user manual P2CON Port 2 Control Register

CONTROL REGISTERSS3C9228/P9228

P2CON – Port 2 Control Register F3H

Bit Identifier

RESET Value

Read/Write

.7-.6

.7	.6	.5	.4	.3	.2	.1	.0
0	0	0	0	0	0	0	0
R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
P2.3 Configuration Bits
0 0	Schmitt trigger input

01 Push-pull output

10 N-channel open-drain output

1 1 Not available

.5-.4	P2.2/SI Configuration Bits
	0	0	Schmitt trigger input (SI)
	0	1	Push-pull output
	1	0	N-channel open-drain output
	1	1	Not available

.3-.2	P2.1/SO Configuration Bits
	0	0	Schmitt trigger input
	0	1	Push-pull output
	1	0	N-channel open-drain output
	1	1	Alternative function (SO out)

.1-.0	P2.0/SCK Configuration Bits
	0	0	Schmitt trigger input (SCK in)
	0	1	Push-pull output
	1	0	N-channel open-drain output
	1	1	Alternative function (SCK out)

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