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CONTROL REGISTERS
P1CONH
— Port 1 Control Register (High Byte)
Bit Identifier
Reset Value
Read/Write
Addressing Mode
.7 and .6
.5 and .4
.3 and .2
.1 and .0
is available in case of S3F80P5's 32-pin, not in 28-pin.
NOTE: P1CONH
P1CONH's reset value is 0FFH. After reset, initial values of port1.4-.7 become CMOS input with pull-up
mode.
4-24
.7
.6
1
1
R/W
R/W
Register addressing mode only
P1.7 Mode Selection Bits
0
0
C-MOS input mode
0
1
Open-drain output mode
1
0
Push-pull output mode
1
1
C-MOS input with pull up mode
P1.6 Mode Selection Bits
0
0
C-MOS input mode
0
1
Open-drain output mode
1
0
Push-pull output mode
1
1
C-MOS input with pull up mode
P1.5 Mode Selection Bits
0
0
C-MOS input mode
0
1
Open-drain output mode
1
0
Push-pull output mode
1
1
C-MOS input with pull up mode
P1.4 Mode Selection Bits
0
0
C-MOS input mode
0
1
Open-drain output mode
1
0
Push-pull output mode
1
1
C-MOS input with pull up mode
.5
.4
1
1
R/W
R/W
R/W
S3F80P5_UM_ REV1.00
EAH Set1 Bank0
.3
.2
.1
1
1
1
R/W
R/W
.0
1
R/W
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