uPSD3212A, uPSD3212C, uPSD3212CV
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Table 46. ADC SFR Memory MapTable 47. Description of the ACON BitsTable 48. ADC Clock Input
SFR
Addr Reg
Name
Bit Register Name Reset
Value Comments
76543210
95 ASCL 00 8-bit
Prescaler for
ADC clock
96 ADAT ADAT 7 A DAT6 A DAT5 A DAT4 ADAT 3 ADAT 2 ADAT 1 AD AT0 00 ADC Data
Register
97 ACON ADEN ADS1 ADS0 ADST ADSF 00 ADC Control
Register
Bit Symbol Function
7 to 6 Reserved
5ADEN ADC Enable Bit: 0 : ADC shut off and consumes no operating current
1 : enable ADC
4—Reserved
3 to 2
ADS1, ADS0 Analog ch annel select
0, 0
0, 1
1, 0
1, 1
Channel0 (ACH0)
Channel1 (ACH1)
Channel2 (ACH2)
Channel3 (ACH3)
1ADST ADC Start Bit: 0 : force to zero
1 : start an ADC; after one cycle, bit is cleared to '0'
0ADSF ADC Status Bit: 0 : A/D conversion is in process
1 : A/D conversion is completed, not in process
MCU Clock Frequency Prescaler Register Value ADC Clock
40MHz 2 6.7MHz
36MHz 2 6MHz
24MHz 1 6MHz
12MHz 0 6MHz