Rev. 1.10
90
November 04, 2019
Rev. 1.10
91
November 04, 2019
HT45F5Q-3
Battery Charger Flash MCU
HT45F5Q-3
Battery Charger Flash MCU
• SADC0 Register
Bit
7
6
5
4
3
2
1
0
Name
START
ADBZ
ADCEN
ADRFS
SACS3
SACS2
SACS1
SACS0
R/W
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit 7
START
: Start the A/D conversion
0→1→0: Start
This bit is used to initiate an A/D conversion process. The bit is normally low but if set
high and then cleared low again, the A/D converter will initiate a conversion process.
Bit 6
ADBZ
: A/D converter busy flag
0: No A/D conversion is in progress
1: A/D conversion is in progress
This read only flag is used to indicate whether the A/D conversion is in progress or
not. When the START bit is set from low to high and then to low again, the ADBZ flag
will be set to 1 to indicate that the A/D conversion is initiated. The ADBZ flag will be
cleared to 0 after the A/D conversion is complete.
Bit 5
ADCEN
: A/D converter function enable control
0: Disable
1: Enable
This bit controls the A/D internal function. This bit should be set to one to enable
the A/D converter. If the bit is set low, then the A/D converter will be switched off
reducing the device power consumption. When the A/D converter function is disabled,
the contents of the A/D data register pair known as SADOH and SADOL will be
unchanged.
Bit 4
ADRFS
: A/D converter data format selection
0: A/D converter data format → SADOH=D[11:4]; SADOL=D[3:0]
1: A/D converter data format → SADOH=D[11:8]; SADOL=D[7:0]
This bit controls the format of the 12-bit converted A/D value in the two A/D data
registers. Details are provided in the A/D data register section.
Bit 3~0
SACS3~SACS0
: A/D converter external analog input channel selection
0000: AN0
0001: AN1
0010: AN2
0011: AN3
0100: AN4
0101: AN5
0110: AN6
0111: AN7
1000: AN8
1001: AN9
1010~1111: Undefined, input floating
• SADC1 Register
Bit
7
6
5
4
3
2
1
0
Name
SAINS2
SAINS1
SAINS0 SAVRS1 SAVRS0 SACKS2 SACKS1 SACKS0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
POR
0
0
0
0
0
0
0
0
Bit 7~5
SAINS2~SAINS0
: A/D converter input signal selection
000: External source – External analog channel intput, ANn
001: Internal source – Internal OPA2 output voltage, 20×A2P
010~100: Unused, connected to ground
101~111: External source – External analog channel input, ANn