Cmod Comparator Mode Register - Samsung S3F80JB User Manual

CONTROL REGISTERS
CMOD
— Comparator Mode Register
Bit Identifier
Reset Value
Read/Write
Addressing Mode
.7
.6
.5
.4
.3 – .0
NOTE: You can select the number of analog input pin for your purpose by setting the CMPSEL.
4-8
.7 .6
0 0
R/W R/W
Register addressing mode only
Comparator Enable Bit
0 Comparator operation disable
1 Comparator operation enable
Conversion Timer Control Bit
8 × 2
7
0
/ f , 256 at 8 MHz
OSC
8 × 2
4
1
/ f , 32 at 8 MHz
OSC
External Reference Selection Bit
0 Internal reference, CIN0-3: Analog input
1 External reference, CIN0-2: Analog input, CIN3: Reference input
Not used for S3F80JB.
Reference Voltage Selection Bits
× (N + 0.5)/16, N = 0 to 15
Selected V = V
REF DD
.5 .4 .3
0 0
R/W R/W R/W
E9H Set1 Bank1
.2 .1
0 0 0
R/W R/W
S3F80JB
.0
0
R/W