Specifications

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MAX_CONV1
Ch Sel (CONV00)
Ch Sel (CONV01)
Ch Sel (CONV03)
Ch Sel (CONV02)
Ch Sel (CONV07)
State
pointer
12-bit A/D
converter
EOC
12
Result MUX
Result
select
12
ADCRESULT0
ADCRESULT1
ADCRESULT7
SEQ1
Software
ePWMx SOCA
External pin
(XINT2_ADCSOC)
Note: Possible values:
Channel select = 0 − 15
MAX CONV1 = 0 − 7
SOC1 EOC1
MUX
Ch Sel (CONV15)
Ch Sel (CONV08)
Ch Sel (CONV09)
Ch Sel (CONV11)
Ch Sel (CONV10)
ePWMx SOCB
MAX_CONV2
SOC2 EOC2
4
Software
SEQ2
Start-of-sequence
trigger
Result
select
ADCRESULT15
12
Result MUX
ADCRESULT9
ADCRESULT8
12
12
MAX CONV2 = 0 − 7
State
pointer
Start-of-sequence
trigger
4
4 4
SOC
Sequencer arbiter
ADCINA0
ADCINA1
ADCINA7
Analog MUX
MUX
select
ADCINB1
ADCINB7
MUX
select
ADCINB0
S/H-A
S/H-B
ADC start of conversion (SOC) trigger sources
Autoconversion Sequencer Principle of Operation
Figure 1-5. Block Diagram of Autosequenced ADC With Dual Sequencers
Note: There is only one ADC in the DSP. This converter is shared by the two sequencers in
dual-sequencer mode.
The sequencer operation for both 8-state and 16-state modes is almost identical; the few differences are
highlighted in Table 1-2 .
Analog-to-Digital Converter (ADC)16 SPRU812A – September 2007 – Revised October 2007
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