Texas Instruments C28 Series Student Guide

Analog-to-Digital Converter
ADC Control Register 1
ADC Control Register 1
-
-
Upper Byte
Upper Byte
ADCTRL1 @ 0x007100
ADCTRL1 @ 0x007100
(lab file:
(lab file:
Adc
Adc
.c)
.c)
15
15
14
14
13
13
12
12
10
10
8
8
9
9
reserved
SUSMOD0
SUSMOD0
Emulation Suspend Mode
Emulation Suspend Mode
00 = [Mode 0] free run (do not stop)
00 = [Mode 0] free run (do not stop)
01 = [Mode 1] stop after current sequence
01 = [Mode 1] stop after current sequence
10 = [Mode 2] stop after current conversion
10 = [Mode 2] stop after current conversion
11 = [Mode 3] stop immediately
11 = [Mode 3] stop immediately
11
11
ADC Module Reset
ADC Module Reset
0 = no effect
0 = no effect
1 = reset (set back to 0
1 = reset (set back to 0
by ADC logic)
by ADC logic)
SUSMOD1
SUSMOD1
RESET
RESET
ACQ_PS3
ACQ_PS3
ACQ_PS2
ACQ_PS2
ACQ_PS1
ACQ_PS1
ACQ_PS0
ACQ_PS0
Acquisition Time
Acquisition Time
Prescale
Prescale
(S/H)
(S/H)
Value = (binary+1)
Value = (binary+1)
*
*
Time dependent on the “Conversion
Time dependent on the “Conversion
Clock
Clock
Prescale
Prescale
” bit (Bit 7 “CPS”)
” bit (Bit 7 “CPS”)
ADC Control Register 1
ADC Control Register 1
-
-
Lower Byte
Lower Byte
ADCTRL1 @ 0x007100
ADCTRL1 @ 0x007100
(lab file:
(lab file:
Adc
Adc
.c)
.c)
7
7
6
6
5
5
4
4
2
2
0
0
1
1
CPS
CPS
CONT_RUN
CONT_RUN
reserved
Sequencer Mode
Sequencer Mode
0 = dual mode
0 = dual mode
1 = cascaded mode
1 = cascaded mode
3
3
Continuous Run
Continuous Run
0 = stops after reaching
0 = stops after reaching
end of sequence
end of sequence
1 = continuous (starts all over
1 = continuous (starts all over
again from “initial state”)
again from “initial state”)
Conversion
Conversion
Prescale
Prescale
0 = CLK / 1
0 = CLK / 1
1 = CLK / 2
1 = CLK / 2
SEQ_CASC
SEQ_CASC
reserved reserved
reserved
SEQ1_OVRD
SEQ1_OVRD
Sequencer Override
Sequencer Override
(continuous run mode)
(continuous run mode)
0 = sequencer pointer resets to “initial state”
0 = sequencer pointer resets to “initial state”
at end of MAX_
at end of MAX_
CONVn
CONVn
1 = sequencer pointer resets to “initial state”
1 = sequencer pointer resets to “initial state”
after “end state”
after “end state”
6 - 6 C28x - Analog-to-Digital Converter

Texas Instruments C28 Series Specifications

General

Brand	Texas Instruments
Model	C28 Series
Category	Computer Hardware
Language	English