IORETEN=B_0x0, JTAGIORETEN=B_0x0
PWR I/O retention register
| IORETEN | IO retention enable: When entering into standby mode, the output is sampled, and applied to the output IO during the standby power mode. Note: the IO state is not retained if the DBG_STANDBY bit is set in DBGMCU_CR register. 0 (B_0x0): IO Retention mode is disabled. 1 (B_0x1): IO Retention mode is enabled for all IOs except the ones supporting the standby functionality (PC13, PC14 and PC15) and JTAG I/Os (PA13, PA14, PA15, PB4). |
| JTAGIORETEN | IO retention enable for JTAG IOs when entering into standby mode, the output is sampled, and applied to the output IO during the standby power mode 0 (B_0x0): IO Retention mode is disabled. 1 (B_0x1): IO Retention mode is enabled for PA13, PA14, PA15 and PB4. |