Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
ID | Date | Version | Classification |
---|---|---|---|
834576 | 10/10/2024 | 001 | Public |
DMA Control (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 | Reserved (RSVD_IC_DMA_CR_2_31)
|
1 | 0h | RW | TDMAE (TDMAE) Transmit DMA Enable. This bit enables/disables the transmit FIFO DMA channel. |
0 | 0h | RW | RDMAE (RDMAE) Receive DMA Enable. This bit enables/disables the receive FIFO DMA channel. |