Intel® Core™ Ultra Series 3 Processors I/O Registers
| ID | Date | Version | Classification |
|---|---|---|---|
| 872352 | 04/14/2026 | 001 | Public |
REG IC_DMA_CR (IC_DMA_CR) – Offset 88
This register is only valid when the controller is configured with a set of DMA Controller interface signals.
When the controller is not configured for DMA operation, this register does not exist and writing to the register’s address has no effect and reading from this register address will return zero.
The register is used to enable the DMA Controller interface operation. There is a separate bit for transmit and receive. This can be programmed regardless of the state of IC_ENABLE.
| Bit Range | Default | Access | Field Name and Description |
|---|---|---|---|
| 31:2 | 0h | RO | RSVD_IC_DMA_CR_2_31 (RSVD_IC_DMA_CR_2_31) RSVD_IC_DMA_CR_2_31 Reserved bits - Read Only |
| 1 | 0h | RW | TDMAE (TDMAE) Transmit DMA Enable. This bit enables/disables the transmit |
| 0 | 0h | RW | RDMAE (RDMAE) Receive DMA Enable. This bit enables/disables the receive |