SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
FOTA operation write byte count. SOC can write to this register to preload byte count based on the page size of the flash memory used. Writing this register causes an indirect write to MCU_DAT_CNT0-MCU_DAT_CNT1 ESFR registers that are used by the VBUSM initiator as the overall byte count for the FOTA write operation. VBUSM initiator performs the required number of 32-byte writes to match this overall byte count. Preloading these ESFR registers through this register removes the burden from 8051 firmware and reduces 8051 code size.
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| Instance Name | Physical Address |
|---|---|
| FSS0 | 0FC6 001Ch |
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 |
| RESERVED | |||||||
| NONE | |||||||
| 0h | |||||||
| 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 |
| RESERVED | |||||||
| NONE | |||||||
| 0h | |||||||
| 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
| RESERVED | VAL1 | ||||||
| NONE | R/W | ||||||
| 0h | 0h | ||||||
| 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| VAL0 | |||||||
| R/W | |||||||
| 0h | |||||||
| Bit | Field | Type | Reset | Description |
|---|---|---|---|---|
| 31:10 | RESERVED | NONE | 0h | Reserved |
| 9:8 | VAL1 | R/W | 0h | FOTA write byte count bits 9:8 Reset Source: vbus_mod_g_rst_n |
| 7:0 | VAL0 | R/W | 0h | FOTA write byte count bits 7:0 Reset Source: vbus_mod_g_rst_n |