SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
The UART wakeup enable register is used to mask and unmask a UART event that would subsequently notify the system. The events are any activity in the logic that could cause an interrupt and/ or an activity that would require the system to wakeup. It should be noted that even if the wakeup is disabled for certain events, if these events are also an interrupt to the UART, then the UART will still register the interrupt as such.
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| Instance Name | Physical Address |
|---|---|
| UART0 | 0280 005Ch |
| UART1 | 0281 005Ch |
| UART2 | 0282 005Ch |
| UART3 | 0283 005Ch |
| UART4 | 0284 005Ch |
| UART5 | 0285 005Ch |
| UART6 | 0286 005Ch |
| WKUP_UART0 | 2B30 005Ch |
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| RESERVED_24 | |||||||
| R | |||||||
| 0h | |||||||
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| RESERVED_24 | |||||||
| R | |||||||
| 0h | |||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| RESERVED_24 | |||||||
| R | |||||||
| 0h | |||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| EVENT_7_TX_WAKEUP_EN | EVENT_6_RECEIVER_LINE_STATUS_INTERRUPT | EVENT_5_RHR_INTERRUPT | EVENT_4_RX_ACTIVITY | EVENT_3_DCD_CD_ACTIVITY | EVENT_2_RI_ACTIVITY | EVENT_1_DSR_ACTIVITY | EVENT_0_CTS_ACTIVITY |
| R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W |
| 1h | 1h | 1h | 1h | 1h | 1h | 1h | 1h |
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31:8 | RESERVED_24 | R | 0h | |
| 7 | EVENT_7_TX_WAKEUP_EN | R/W | 1h | 0 Event is not allowed to wake up the system
1 EVENT CAN WAKE UP THE SYSTEM: Event can be:
THR_IT or TX_DMA request and/or TX_SATUS_IT |
| 6 | EVENT_6_RECEIVER_LINE_STATUS_INTERRUPT | R/W | 1h | 0 Event is not allowed to wake up the system 1 Event can wake up the system |
| 5 | EVENT_5_RHR_INTERRUPT | R/W | 1h | 0 Event is not allowed to wake up the system 1 Event can wake up the system |
| 4 | EVENT_4_RX_ACTIVITY | R/W | 1h | 0 Event is not allowed to wake up the system 1 Event can wake up the system |
| 3 | EVENT_3_DCD_CD_ACTIVITY | R/W | 1h | 0 Event is not allowed to wake up the system 1 Event can wake up the system |
| 2 | EVENT_2_RI_ACTIVITY | R/W | 1h | 0 Event is not allowed to wake up the system 1 Event can wake up the system |
| 1 | EVENT_1_DSR_ACTIVITY | R/W | 1h | 0 Event is not allowed to wake up the system 1 Event can wake up the system |
| 0 | EVENT_0_CTS_ACTIVITY | R/W | 1h | 0 Event is not allowed to wake up the system 1 Event can wake up the system |