Texas Instruments TMS320F2837 D Series Workshop Manual And Lab Manual page 156

ePWM
EXTSYNCIN1
ePWM1
ePWM2
ePWM3
EPWM4SYNCIN
Various ePWM modules (and eCAP units) can be grouped together for synchronization.
EPWMCLK
Clock
Prescaler
TBCLK
EPWMxSYNCI
The ePWM module consists of eight submodules: time-base, counter-compare, action-qualifier,
dead-band generator, PWM chopper, trip-zone, digital-compare, and event-trigger.
7 - 6
ePWM Synchronization Scheme
SyncSocRegs.SYNCSELECT
EXTSYNCIN2
ePWM4
ePWM5 ePWM7
ePWM6 ePWM8
ePWM9
EPWM7SYNCIN
EPWM10SYNCIN
ePWM Block Diagram
Compare
Registers
16-Bit
Compare
Time-Base
Logic
Counter
EPWMxSYNCO
Period
Register
TMS320F2837xD Microcontroller Workshop - Control Peripherals
ePWM10
ePWM11 eCAP1
ePWM12 eCAP2 eCAP4
eCAP3 eCAP5
ECAP1SYNCIN
eCAP6
ECAP4SYNCIN
Event Trigger
Compare
Registers
Action
Qualifier
PWM
Chopper
Digital
Compare
EPWM1
SYNCOUT
EPWM4
SYNCOUT
EPWM7
EXT
SYNCOUT
SYNCOUT
EPWM10
SYNCOUT
ECAP1
SYNCOUT
SYNCOUT
Dead
Band
EPWMxA
Trip
Zone
EPWMxB
TZy
TZ1-TZ3
INPUT X-Bar
ePWM X-Bar