Update Management. Holtek HT32F5828

32-Bit Arm ®

HT32F5828

Cortex ® -M0+ MCU

Update Management

The Update event is used to update the CRR, the PSCR, the CHxACR and the CHxCCR values from the actual registers to the corresponding shadow registers. An update event occurs when the counter overflows or underflows, the software update control bit is triggered or an update event from the slave controller is generated.

The UEVDIS bit in the CNTCFR register can determine whether the update event occurs or not. When the update event occurs, the corresponding update event interrupt will be generated depending upon whether the update event interrupt generation function is enabled or not by configuring the UGDIS bit in the CNTCFR register. For more detailed description, refer to the

UEVDIS and UGDIS bit definition in the CNTCFR register

Update Event Management

Counter Overflow / Underflow

UEVG

Slave Restart mode

UEV (Update PSCR, CRR,

CHxCCR, CHxACR

Shadow Registers)

UEVDIS

Update Event Interrupt Management

Counter Overflow / Underflow

UEVG

Slave Restart mode

UGDIS

Figure 139. Update Event Setting Diagram

UEVDIS

UEV interrupt

Rev. 1.00 426 of 637 December 28, 2020