So after reading the link field of the descriptor, the hardware will update the RXDP register automaticly. And then the hardware set the "done" field of the current descriptor, am I right?
Thank you. On Mon, Jun 21, 2010 at 8:24 PM, Bob Copeland <m...@bobcopeland.com> wrote: > On Mon, Jun 21, 2010 at 5:04 AM, Lrj <buaa...@gmail.com> wrote: > > If not, how the hardware knows the address of next rx descriptor while > the > > RXDP register's value remains the first rx descriptor's address? > > The hardware reads the link field of the current descriptor. > > -- > Bob Copeland %% www.bobcopeland.com > -- Best wishes, Lrj, NCI
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