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CONTROL REGISTERS S3C84E5/C84E9/P84E9
4-16
P1CONH — Port 1 Control Register (High Byte) E8H Set 1, Bank 0
Bit Identifier .7 .6 .5 .4 .3 .2 .1 .0
Reset Value 0 0 0 0 0 0 0 0
Read/Write – – – – R/W R/W R/W R/W
Addressing Mode Register addressing mode only
.7–.4 Not used for the S3C84E5/C84E9/P84E9 (must keep always 0)
.3–.2 P1.5/TXD Configuration Bits
0 0 Input mode with pull-up
0 1 Input mode
1 0 Push-pull output mode
1 1 Alternative function mode: TXD output
.1–.0 P1.4/RXD Configuration Bits
0 0 Input mode with pull-up; RXD input
0 1 Input mode; RXD input
1 0 Push-pull output mode
1 1 Alternative function mode: RXD output