HT46R01B/02B/01N/02N
HT48R01B/02B/01N/02N
·
ADRH, ADRL Register
ADRH
ADRL
Bit
7
6
5
4
3
D7
R
2
D6
R
1
D5
R
0
D4
R
7
D3
R
6
D2
R
5
D1
R
4
D0
R
3
2
1
0
Name D11 D10 D9
D8
R
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
R/W
R
x
R
x
R
x
POR
x
x
x
x
x
x
x
x
x
²x² unknown
unimplemented, read as ²0²
D11~D0: ADC conversion data
·
ADCR Register
Bit
7
6
EOCB
R
5
PCR3
R/W
0
4
PCR2
R/W
0
3
2
1
0
ACS0
R/W
0
Name
R/W
START
R/W
0
PCR1
R/W
0
PCR0
R/W
0
ACS1
R/W
0
POR
1
Bit 7
START: Start the A/D conversion
0®1®0 : start
0®1
: reset the A/D converter and set EOCB to ²1²
Bit 6
EOCB: End of A/D conversion flag
0: A/D conversion ended
1: A/D conversion in progress
Bit 5~3
PCR3, PCR2, PCR1, PCR0: A/D channel configuration
0: I/O
1: analog input n (n=0~3)
If PCR0~PCR3 are all zero, the ADC circuit is power off to reduce power consumption
Bit 2~0
ACS1 ~ ACS0: Select A/D channel
00: AN0
01: AN1
10: AN2
11: AN3
Rev.1.10
44
February 12, 2010
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
