Intel® Core™ Ultra Series 3 Processors I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872352 | 04/14/2026 | 001 | Public |
SSP x Multi Output DMA y Control / Status (I2S2_SSMOD7CS) – Offset 2a250
This register controls which DMA FIFO will be active for initiating DMA request and transmission to time slot on the SSP Interface in network mode (SSC0.MOD = 1), and which are ignored if it is not in network mode. It also reporte various status of the DMA FIFO.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:29 | 0h | RO | Reserved (Zero) (RSVD31) SW must use zeros for writes. |
| 28 | 0h | RW/1C | Transmit FIFO Underrun (TUR) 0: Transmit FIFO has not experienced an underrun. |
| 27 | 0h | RO/V | Transmit FIFO Service Request (TFS) 0: Transmit FIFO level is below 1 sample block free space threshold, or SSP disabled. |
| 26 | 1h | RO/V | Transmit FIFO Not Full (TNF) 0: Transmit FIFO is full. |
| 25:24 | 0h | RO | Reserved (Zero) (RSVD25) SW must use zeros for writes. |
| 23:16 | 0h | RO/V | Transmit FIFO Level (TFL) Number of entries in transmit FIFO. |
| 15:2 | 0h | RO | Reserved (Preserved) (RSVD15) SW must preserve the original value when writing. |
| 1 | 0h | RW/V | Transmit Service Request Enable (TSRE) 0: DMA Service Request is disabled. |
| 0 | 0h | RW | TX Enable (TXEN) When set to 1, SSP always starts to transmit data in the active time slot specified in SSxMODyTSA.TTSA in the next frame. When cleared to 0, SSP stops transmit data in the next frame. |