2.19.4 SERCOM-USART: Overconsumption in Standby Mode
When the SERCOM USART configured as CTRLA.RUNSTDBY=0 and the Receiver is
disabled (CTRLB.RXEN=0), the clock request to the SERCOM generic clock
generator feeding the SERCOM will stay asserted during the Standby Sleep mode, leading
to unexpected overconsumption.
Work Around:
Configure CTRLA.RXPO and CTRLA.TXPO to use the same SERCOM PAD for RX and TX or add an external pull-up on the RX pin.
Affected Silicon Revisions
PIC32CX1012BZ25048/WBZ451/WBZ451H| A0 | A2 | |||||
|---|---|---|---|---|---|---|
| X | X |
| A2 | |||||
|---|---|---|---|---|---|
| X |