Download Samsung S3F84B8 User`s manual

S3F84B8 USER’S MANUAL V1.0
CONTROL REGISTER
P2CONL — Port 2 Control Register (Low Byte)
E9H, BANK0
Bit Identifier
.7
.6
.5
.4
.3
.2
.1
.0
RESET Value
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Read/Write
.7–.6
.5–.4
.3–.2
.1–.0
Part 2, P2.3/ADC3/(OA_O) Configuration Bits
0
0
Schmitt trigger input;
0
1
Schmitt trigger input; pull-up enable
1
0
Push-pull output
1
1
Alternative function: ADC3 input *
Port 2, P2.2/ADC2/OA_N Configuration Bits
0
0
Schmitt trigger input
0
1
Alternative function: OPAMP negative input
1
0
Push-pull output
1
1
Alternative function: ADC2 input
Port 2, P2.1/ADC1/OP_P Configuration Bits
0
0
Schmitt trigger input
0
1
Alternative function: OPAMP positive input
1
0
Push-pull output
1
1
Alternative function: ADC1 input
Port 2, P2.0/ADC0/TDOUT Configuration Bits
0
0
Schmitt trigger input
0
1
Alternative function: TDOUT
1
0
Push-pull output
1
1
Alternative function: ADC0 input
NOTE: when OP AMP is enabled, P2CON.3 must be configured as ADC input no matter you want to use internal ADC module
or not.
4-31