HT48R02N Holtek Semiconductor, HT48R02N Datasheet - Page 44
HT48R02N
Manufacturer Part Number
HT48R02N
Description
(HT4xR0xx) Small Package 8-Bit OTP MCU
Manufacturer
Holtek Semiconductor
Datasheet
1.HT48R02N.pdf
(71 pages)
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Rev.1.00
ADRH, ADRL Register
ADCR Register
Bit 7
Bit 6
Bit 5~3
Bit 2~0
Name
POR
R/W
Bit
Name
POR
R/W
Bit
D11 D10
R
7
x
START
unimplemented, read as 0
D11~D0: ADC conversion data
START: Start the A/D conversion
0 1 0 : start
0 1
EOCB: End of A/D conversion flag
PCR3, PCR2, PCR1, PCR0: A/D channel configuration
If PCR0~PCR3 are all zero, the ADC circuit is power off to reduce power consumption
ACS1 ~ ACS0: Select A/D channel
R/W
0: A/D conversion ended
1: A/D conversion in progress
0: I/O
1: analog input n (n=0~3)
00: AN0
01: AN1
10: AN2
11: AN3
R
6
x
7
0
D9
R
5
x
: reset the A/D converter and set EOCB to 1
EOCB
D8
R
R
6
1
4
x
ADRH
D7
R
3
x
PCR3
R/W
D6
5
0
R
2
x
D5
R
1
x
PCR2
44
R/W
4
0
D4
R
0
x
D3
R
7
x
PCR1
R/W
3
0
D2
R
6
x
D1
R
5
x
HT46R01B/02B/01N/02N
HT48R01B/02B/01N/02N
PCR0
R/W
2
0
D0
R
4
x
ADRL
3
ACS1
R/W
1
0
December 15, 2009
2
x unknown
1
ACS0
R/W
0
0
0
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