SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
Global Event Buffer Size Register This register holds the Event Buffer Size and the Event Interrupt Mask bit. During power-on initialization, software must initialize the size with the number of bytes allocated for the Event Buffer. The Event Interrupt Mask will mask the interrupt, but events are still queued. After configuration, software must preserve the Event Buffer Size value when changing the Event Interrupt Mask.
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| Instance Name | Physical Address |
|---|---|
| USB0 | 3100 C408h + formula |
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| EVNTINTRPTMASK | RESERVED_30_16 | ||||||
| R/W | R | ||||||
| 0h | 0h | ||||||
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| RESERVED_30_16 | |||||||
| R | |||||||
| 0h | |||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| EVENTSIZ | |||||||
| R/W | |||||||
| 0h | |||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| EVENTSIZ | |||||||
| R/W | |||||||
| 0h | |||||||
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31 | EVNTINTRPTMASK | R/W | 0h | Event Interrupt Mask [EvntIntMask]. When set to '1', this prevents the interrupt from being generated. However, even when the mask is set, the events are queued. Reset Source: rst_mod_g_rst_n |
| 30:16 | RESERVED_30_16 | R | 0h | Reserved |
| 15:0 | EVENTSIZ | R/W | 0h | Event Buffer Size in bytes [EVNTSiz] Holds the size of the Event Buffer in bytes. must be a multiple of four. This is programmed by software once during initialization. The minimum size of the event buffer is 32 bytes. Reset Source: rst_mod_g_rst_n |