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HT48R02B Datasheet(PDF) 44 Page - Holtek Semiconductor Inc

Part # HT48R02B
Description  Small Package 8-Bit OTP MCU
PDF  71 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT48R02B Datasheet(HTML) 44 Page - Holtek Semiconductor Inc

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HT46R01B/02B/01N/02N
HT48R01B/02B/01N/02N
Rev.1.00
44
December 15, 2009
· ADRH, ADRL Register
ADRH
ADRL
Bit
7654321076543210
Name
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
¾¾¾¾
R/W
RRRRRRRRRRRR
¾¾¾¾
POR
xxxxxxxxxxxx
¾¾¾¾
²x² unknown
unimplemented, read as
²0²
D11~D0: ADC conversion data
· ADCR Register
Bit
76543210
Name
START
EOCB
PCR3
PCR2
PCR1
PCR0
ACS1
ACS0
R/W
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
POR
01000000
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



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