AX58200 datasheet(99/180 Pages) ASIX

99 / 180 page

AX58200

EtherCAT Slave Controller SoC

2.42.3 Functional Description

2.42.3.1 From EPWM, TIMER to EADC/DAC

EPWM Trigger EADC Conversion

EPWM can be one of the EADC conversion trigger source.

EPWM Trigger DAC Conversion

EPWM can also be used to trigger DAC conversion.

BPWM Trigger EADC Conversion

BPWM can be one of the EADC conversion trigger source.

Timer Trigger EADC Conversion

Timer0 ~ Timer3 can be one of the EADC conversion trigger source. When timer counter value matches the

timer compared value or when the TMx_EXT pin edge transition meets setting, timer will trigger the ADC to

start the conversion.

Timer Trigger DAC Conversion

2.42.3.2 From LXT and USB 1.1 Device to HIRC TRIM & RC 48 MHz

Use LXT or USB Synchronous Mode to System Auto-trim HIRC Circuit

This chip supports auto-trim function: the HIRC trim (12 MHz RC oscillator) and RC 48 MHz oscillator,

according to the accurate external 32.768 KHz crystal oscillator or internal USB synchronous mode,

automatically gets accurate output frequency, 0.25 % deviation within all temperature ranges.

2.42.3.3 From ACMP, BOD, Clock Fail, SRAM Parity Error and CPU Lockup to EPWM/

TIMERPWM

EPWM Brake Source

EPWM brake source can be ACMP0/1_O output signal or EADC result monitor or several different system fail

conditions include clock fail, Brown-out detect, and Core lockup and SRAM Parity Error. When system fault,

EPWM brake signal generated, EPWM output will be set to protect the power switch controlled by EPWM.

TIMERPWM Brake Source

TIMERPWM brake source can be ACMP0/1_O output signal or several different system fail conditions include

clock fail, Brown-out detect, and Core lockup and SRAM Parity Error. When system fault, EPWM brake signal

generated, EPWM output will be set to protect the power switch controlled by EPWM.

2.42.3.4 From EPWM/ BPWM to EPWM/ BPWM

EPWM Synchronous Start Function

Select synchronous source from EPWM0 or EPWM1 or BPWM0 or BPWM1, and select EPWM channels. The

chosen EPWM channels will start counting at the same time once the synchronous start function is enabled and

CNTSEN(EPWM_SSTRG[0]) is set.

BPWM Synchronous Start Function

Select synchronous source from EPWM0 or EPWM1 or BPWM0 or BPWM1, and select BPWM channels. The

chosen BPWM channels will start counting at the same time once the synchronous start function is enabled and

CNTSEN(BPWM_SSTRG[0]) is set.

AX58200 Datasheet(PDF) 99 Page - ASIX Electronics Corporation