Texas Instruments TMS320F2837 D Series Workshop Guide And Lab Manual

ePWM
7 - 32 TMS320F2837xD Microcontroller Workshop - Control Peripherals
The ePWM X-BAR is used to route various internal and external signals to the ePWM modules.
Eight trip signals from the ePWM X-BAR are routed to all of the ePWM modules.
ePWM X-Bar
EPWM/ECAP sync
ADCSOCAO
ADCSOCBO
ECAP1
ECAP2
ECAP3
ECAP4
ECAP5
ECAP6
ADCA
ADCB
ADCC
ADCD
All
ePWM
Modules
CMPSS1
CMPSS8
INPUT X-Bar
ePWM
X-Bar
SD1
SD2
TRIPIN4
TRIPIN5
TRIPIN7
TRIPIN8
TRIPIN9
TRIPIN10
TRIPIN11
TRIPIN12
INPUT1
INPUT2
INPUT3
INPUT4
INPUT5
INPUT6
EVT1 to EVT4
EVT1 to EVT4
EVT1 to EVT4
EVT1 to EVT4
ECAP1.OUT
ECAP2.OUT
ECAP3.OUT
ECAP4.OUT
ECAP5.OUT
ECAP6.OUT
ADCSOCA
ADCSOCB
EXTSYNCOUT
CTRIPH
CTRIPL
CTRIPL
CTRIPH
FLT1.COMPH
FLT1.COMPL
FLT4.COMPH
FLT4.COMPL
FLT1.COMPH
FLT1.COMPL
FLT4.COMPH
FLT4.COMPL
The ePWM X-BAR architecture block diagram shown below is replicated 8 times. The ePWM X-
BAR can select a single signal or logically OR up to 32 signals. The table in the figure defines the
various trip sources that can be multiplexed to the trip-zone and digital compare submodules.
0
0.0
0.1
0.2
0.3
1
1.0
1.1
1.2
1.3
31
31.0
31.1
31.2
31.3
TRIPINx
TRIPOUTPUTINV
TRIPxMUXENABLE
TRIPxMUX0TO15CFG.MUX0
TRIPxMUX0TO15CFG.MUX1
TRIPxMUX16TO31CFG.MUX31
ePWM X-Bar Architecture
MUX 0 1 2 3
16 SD1FLT1.COMPH SD1FLT1.COMPH_OR_COMPL
17 SD1FLT1.COMPL
18 SD1FLT2.COMPH SD1FLT2.COMPH_OR_COMPL
19 SD1FLT2.COMPL
20 SD1FLT3.COMPH SD1FLT3.COMPH_OR_COMPL
21 SD1FLT3.COMPL
22 SD1FLT4.COMPH SD1FLT4.COMPH_OR_COMPL
23 SD1FLT4.COMPL
24 SD2FLT1.COMPH SD2FLT1.COMPH_OR_COMPL
25 SD2FLT1.COMPL
26 SD2FLT2.COMPH SD2FLT2.COMPH_OR_COMPL
27 SD2FLT2.COMPL
28 SD2FLT3.COMPH SD2FLT3.COMPH_OR_COMPL
29 SD2FLT3.COMPL
30 SD2FLT4.COMPH SD2FLT4.COMPH_OR_COMPL
31 SD2FLT4.COMPL
MUX 0 1 2 3
0 CMPSS1.CTRIPH CMPSS1.CTRIPH_OR_CTRIPL ADCAEVT1 ECAP1.OUT
1 CMPSS1.CTRIPL INPUTXBAR1 ADCCEVT1
2 CMPSS2.CTRIPH CMPSS2.CTRIPH_OR_CTRIPL ADCAEVT2 ECAP2.OUT
3 CMPSS2.CTRIPL INPUTXBAR2 ADCCEVT2
4 CMPSS3.CTRIPH CMPSS3.CTRIPH_OR_CTRIPL ADCAEVT3 ECAP3.OUT
5 CMPSS3.CTRIPL INPUTXBAR3 ADCCEVT3
6 CMPSS4.CTRIPH CMPSS4.CTRIPH_OR_CTRIPL ADCAEVT4 ECAP4.OUT
7 CMPSS4.CTRIPL INPUTXBAR4 ADCCEVT4
8 CMPSS5.CTRIPH CMPSS5.CTRIPH_OR_CTRIPL ADCBEVT1 ECAP5.OUT
9 CMPSS5.CTRIPL INPUTXBAR5 ADCDEVT1
10 CMPSS6.CTRIPH CMPSS6.CTRIPH_OR_CTRIPL ADCBEVT2 ECAP6.OUT
11 CMPSS6.CTRIPL INPUTXBAR6 ADCDEVT2
12 CMPSS7.CTRIPH CMPSS7.CTRIPH_OR_CTRIPL ADCBEVT3
13 CMPSS7.CTRIPL ADCSOCA ADCDEVT3
14 CMPSS8.CTRIPH CMPSS8.CTRIPH_OR_CTRIPL ADCBEVT4 EXTSYNCOUT
15 CMPSS8.CTRIPL ADCSOCB ADCDEVT4
This block diagram is replicated 8 times
EPwmXbarRegs.register
Note: TRIPLOCK register locks the
configuration for the ePWM X-Bar

Texas Instruments TMS320F2837 D Series Specifications

General

Brand	Texas Instruments
Model	TMS320F2837 D Series
Category	Microcontrollers
Language	English