Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
ID | Date | Version | Classification |
---|---|---|---|
834576 | 10/10/2024 | 001 | Public |
THC Write Interrupt Status (THC_M_PRT_WRITE_INT_STS) – Offset 109c
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:4 | 0h | RO | Reserved (RSVD_31_4) Reserved. |
3 | 0h | RO/V | Active status for Write DMA (THC_WRDMA_ACTIVE) Write DMA is active. |
2 | 0h | RW/1C/V | Interrupt Status for IOC for Write DMA (THC_WRDMA_IOC_STS) A PRD entry with IOC bit set has been completed during WRDMA operation. If the THC_WRDMA_IE_IOC bit is also 1, then an interrupt is generated. In polling mode, when THC_WRDMA_IE_IOC Equals to 0, SW clears the bit by writing 1 to the bit. |
1 | 0h | RW/1C/V | Write DMA Error Status (THC_WRDMA_ERROR_STS) Error encountered during write DMA operation. If the THC_WRDMA_IE_ERROR bit is also 1, then an interrupt is generated. In polling mode, when THC_WRDMA_IE_ERROR Equals 0, SW clears the bit by writing 1 to the bit. |
0 | 0h | RW/1C/V | Write DMA Completion Status bit (THC_WRDMA_CMPL_STATUS) This bit is set upon successful completion of the Write DMA operation or by the rising edge of the Error bit. If the THC_WRDMA_IE_IOC_DMACPL bit is also 1, then an interrupt is generated. In polling mode, when THC_WRDMA_IE_IOC_DMACPL=0, SW clears the bit by writing 1 to the bit. |