2.19.8 SERCOM-USART: SERCOM USART in TX Mode Only
When the SERCOM USART is 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 |