SPRADL7 July   2025 F28E120SC

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Key Differences Between EPWM and MCPWM
  6. 3 Time-Base Submodule Differences
    1. 3.1 Register Differences
    2. 3.2 Driverlib Differences
  7. 4 Counter-Compare Submodule Differences
    1. 4.1 Register Differences
    2. 4.2 Driverlib Differences
  8. 5 Action-Qualifier Submodule Differences
    1. 5.1 Register Differences
    2. 5.2 Driverlib Differences
  9. 6 Dead-Band Submodule Differences
    1. 6.1 Register Differences
    2. 6.2 Driverlib Differences
  10. 7 Trip-Zone Submodule Differences
    1. 7.1 Register Differences
    2. 7.2 Driverlib Differences
  11. 8 Event-Trigger Submodule Differences
    1. 8.1 Register Differences
    2. 8.2 Driverlib Differences
  12. 9 Global Load Differences
    1. 9.1 Register Differences
    2. 9.2 Driverlib Differences
  13. 10Summary
  14. 11References

8.1 Register Differences

The Event-Trigger Submodule register differences between EPWM and MCPWM are listed in Table 8-1.

Table 8-1 Event-Trigger Submodule Register Differences Between EPWM and MCPWM

EPWM

MCPWM

Description

ETCLR.INT

INTCLR.INT

Clear Interrupt bit register renamed

INTCLR.ET1

New interrupt status clear bits for ET1

INTCLR.ET2

New interrupt status clear bits for ET2

INTCLR.CNT_OVF

New interrupt status clear bits for TBCTR overflow

INTCLR.CBC

New interrupt status clear bits for CBC trip

INTCLR.OST

New interrupt status clear bits for one-shot trip

ETCLR.SOCA

SOCCLR.SOCA

New Register for clearing SOCx events

ETCLR.SOCB

SOCCLR.SOCB

New Register for clearing SOCx events

SOCCLR.SOCC

New Register for clearing SOCx events

SOCCLR.SOCD

New Register for clearing SOCx events

ETCNTINIT.INTINIT

-

Prescaler custom init value feature removed

ETCNTINIT.SOCAINIT

-

Prescaler custom init value feature removed

ETCNTINIT.SOCBINIT

-

Prescaler custom init value feature removed

ETCNTINITCTL.INTINITEN

-

Prescaler custom init value feature removed

ETCNTINITCTL.INTINITFRC

-

Prescaler custom init value feature removed

ETCNTINITCTL.SOCAINITEN

-

Prescaler custom init value feature removed

ETCNTINITCTL.SOCAINITFRC

-

Prescaler custom init value feature removed

ETCNTINITCTL.SOCBINITEN

-

Prescaler custom init value feature removed

ETCNTINITCTL.SOCBINITFRC

-

Prescaler custom init value feature removed

ETFLG.INT

INTFLAG.INT

Register rename (INTFLAG)

INTFLAG.CBC

New flag bit for CBC interrupt

INTFLAG.CNT_OVF

New flag bit for TBCTL overflow interrupt

INTFLAG.ET1

New flag bit for ET1 interrupt

INTFLAG.ET2

New flag bit for ET2 interrupt

INTFLAG.OST

New flag bit for OST interrupt

ETFLG.SOCA

SOCFLAG.SOCA

New register for SOCx flags

ETFLG.SOCB

SOCFLAG.SOCB

New register for SOCx flags

SOCFLAG.SOCC

New register for SOCx flags

SOCFLAG.SOCD

New register for SOCx flags

ETFRC.INT

-

Global interrupt force removed

ETFRC.SOCA

-

SOCA force removed

ETFRC.SOCB

-

SOCB force removed

ETINTPS.INTCNT2

-

Expanded prescaler counter removed

ETINTPS.INTPRD2

-

Expanded prescaler period removed

ETPS.INTCNT

-

Event Trigger INT separated into ET1 and ET2

ETCNT.ET1_CNT

Event Trigger INT separated into ET1 and ET2

ETCNT.ET2_CNT

Event Trigger INT separated into ET1 and ET2

ETPS.INTPRD

-

Event Trigger INT separated into ET1 and ET2

ETPERIOD.ET1_PERIOD

Event Trigger INT separated into ET1 and ET2

ETPERIOD.ET2_PERIOD

Event Trigger INT separated into ET1 and ET2

ETPS.INTPSSEL

-

Expanded prescaler counter removed

ETPS.SOCACNT

SOCCNT.SOCA_CNT

Register rename

ETPS.SOCAPRD

SOCPERIOD.SOCA_PERIOD

Register rename

ETPS.SOCBCNT

SOCCNT.SOCB_CNT

Register rename

ETPS.SOCBPRD

SOCPERIOD.SOCB_PERIOD

Register rename

SOCCNT.SOCC_CNT

Additional SOCC prescaler counter

SOCCNT.SOCD_CNT

Additional SOCD prescaler counter

SOCPERIOD.SOCC_PERIOD

Additional SOCC prescaler counter

SOCPERIOD.SOCD_PERIOD

Additional SOCD prescaler counter

ETPS.SOCPSSEL

-

Expanded prescaler counter removed

ETSEL.INTEN

-

Event Trigger INT separated into ET1 and ET2

ETSEL.INTSEL

-

Event Trigger INT separated into ET1 and ET2

INTEN.CBC

New en bit for CBC interrupt

INTEN.CNT_OVF

New en bit for TBCTL overflow interrupt

INTEN.ET1

New en bit for ET1 interrupt

INTEN.ET2

New en bit for ET2 interrupt

INTEN.OST

New en bit for OST interrupt

ETSEL.ET1_SEL

Event Trigger INT separated into ET1 and ET2

ETSEL.ET2_SEL

Event Trigger INT separated into ET1 and ET2

ETSEL.INTSELCMP

-

EPWMxINT Compare Select

ETSEL.SOCAEN

SOCEN.SOCA_ENABLE

Start of Conversion A Enable

ETSEL.SOCASEL

SOCSEL.SOCA_SEL

Start of Conversion A Select

ETSEL.SOCASELCMP

-

Not needed since SOCC and SOCD events are independent events

ETSEL.SOCBEN

SOCEN.SOCB_ENABLE

Register rename

ETSEL.SOCBSEL

SOCSEL.SOCB_SEL

Register rename

ETSEL.SOCBSELCMP

-

Not needed since SOCC and SOCD events are independent events

SOCEN.SOCC_ENABLE

New SOCC and SOCD events

SOCEN.SOCD_ENABLE

New SOCC and SOCD events

SOCSEL.SOCC_SEL

New SOCC and SOCD events

SOCSEL.SOCD_SEL

New SOCC and SOCD events

ETSOCPS.SOCACNT2

-

Expanded prescaler counter removed

ETSOCPS.SOCAPRD2

-

Expanded prescaler counter removed

ETSOCPS.SOCBCNT2

-

Expanded prescaler counter removed

ETSOCPS.SOCBPRD2

-

Expanded prescaler counter removed

-

INTFRC.CBC

Independent software force bits for each interrupt source

-

INTFRC.CNT_OVF

Independent software force bits for each interrupt source

-

INTFRC.ET1

Independent software force bits for each interrupt source

-

INTFRC.ET2

Independent software force bits for each interrupt source

-

INTFRC.OST

Independent software force bits for each interrupt source