SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
A High-Resolution PWM (HRPWM) modulator is added to each of the device EPWM modules.
The HRPWM option applies only to the EPWMxA output channel. The EPWMxB channel has conventional capabilities. For more details on HRPWM features of EPWM modules refer to the Section 12.4.2.4.9.
The EPWM module interface has some restrictions in functionality as listed below:
The EPWM functional interface signals which are NOT available to user are summarized in Table 12-5046.
Module Interface | Signal | Description | Comment |
---|---|---|---|
EPWM_n (where n = 0 to 5 for the device) | EPWM_COMP_EPWMDCMAH | EPWM Comparator A input (HIGH) | Not available at chip boundary (can not be used) |
EPWM_COMP_EPWMDCMAL | EPWM Comparator A input (LOW) | ||
EPWM_COMP_EPWMDCMBH | EPWM Comparator B input (HIGH) | ||
EPWM_COMP_EPWMDCMBL | EPWM Comparator B input (LOW) | ||
EPWM_TRIP_TZ_O[5:0] | EPWM Tripzone outputs | ||
EPWM_TRIP_TZ_OEN[5:0] | EPWM Tripzone outputs enable |
Only the SYNCI input and SYNCO output signals of EPWM0 and EPWM3 modules are available at chip-level. Respective names of the signals are: EHRPWM0_SYNCI and EHRPWM0_SYNCO (for EPWM0) and EHRPWM3_SYNCI and EHRPWM3_SYNCO (for EPWM3). For more information, see Section 12.4.2.2, EPWM Environment.