EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 621
DSCR_SIZE
0x02C
10.25.10 DSCR_SIZE (continued)
1EOP A marker indicating this descriptor refers to the last buffer of a packet or transfer. Packets/transfers
may span more than one buffer. The producing IP provides this marker by providing the EOP signal
to its DMA adapter. The consuming IP observes this marker by inspecting its EOP return signal from
its own DMA adapter. For more information, refer to the section on packets, buffers and transfers in
the FX3 DMA Subsystem chapter on page 58.
0 MARKER A marker that is provided by software and can be observed by the IP. Its meaning is defined by the IP
that uses it. This bit has no effect on the other DMA mechanisms.
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