Intel® Core™ Ultra Series 3 Processors I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872352 | 04/14/2026 | 001 | Public |
PIO Interrupt Signal Enable Register (DWC_mipi_i3c_HCI_block.PIO_INTR_SIGNAL_ENABLE) – Offset e8
The PIO Interrupt Signal Enable register enables signaling of outstanding interrupts received by the Host Controller.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:10 | 0h | RO | Reserved |
| 9 | 0h | RW | (TRANSFER_ERR_SIGNAL_EN) When set to 1'b1 & field TRANSFER_ERR_STAT is set, asserts interrupt to Host. |
| 8:6 | 0h | RO | Reserved |
| 5 | 0h | RW | (TRANSFER_ABORT_SIGNAL_EN) When set to 1'b1 & field TRANSFER_ABORT_STAT is set, asserts interrupt to Host. |
| 4 | 0h | RW | (RESP_READY_SIGNAL_EN) When set to 1'b1 & field RESP_READY_STAT is set, asserts interrupt to Host. |
| 3 | 0h | RW | (CMD_QUEUE_READY_SIGNAL_EN) When set to 1'b1 & field CMD_QUEUE_READY_STAT is set, asserts interrupt to Host. |
| 2 | 0h | RW | (IBI_THLD_SIGNAL_EN) When set to 1'b1 & field IBI_STATUS_THLD_STAT is set, asserts interrupt to Host. |
| 1 | 0h | RW | (RX_THLD_SIGNAL_EN) When set to 1'b1 & field RX_THLD_STAT is set, asserts interrupt to Host. |
| 0 | 0h | RW | (TX_THLD_SIGNAL_EN) When set to 1'b1 & field TX_THLD_STAT is set, asserts interrupt to Host. |