This value provides the pointer to the next descriptor in the descriptor chain.
Figure 1. S2MM_NXTDESC
Bits | Field Name | Description |
---|---|---|
5 to 0 | Reserved | These bits are reserved and should be set to zero. |
31 to 6 | Next Descriptor Pointer |
Indicates the lower order pointer pointing to the first word of the next descriptor. Note: Descriptors must be 16-word aligned,
that is, 0x00, 0x40, 0x80, and so forth. Any other alignment has
undefined results.
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