MB86613S Datasheet, PDF (73/134 Pages) Fujitsu Component Limited. – IEEE1394 Open HCI Controller

Preliminary
4.4. Isochronous Receive
4.4.1. Program Analysis
Context program is analyzed by the following procedures:
For buffer- fill mode:
P1 . . . . Store the received packet in the host memory that dataAddress field of descriptor indicates the
address. If no space is available in the host memory (resCount=0), go to the interrupt handling
process.
For packet- per- buffer mode:
P1 . . . . Store the received packet in the host memory that dataAddress field of descriptor indicates the
address. If the stored packet is the last one, go to the interrupt handling process. If no space is
available in the host memory (resCount=0), go to the procedure P2.
P2 . . . . If the descriptor is INPUT_LAST command, then go to the interrupt handling process and if
INPUT_MORE command then return to the procedure P1 again.
The MB86613S chip supports the buffer- fill mode and packet- per- buffer mode. For details, see sections
4.2.3 and 4.4.3 respectively.
P1
resCount=0
INT
Fig. 4.33 State Machine of Program Analysis for isochronous packet Receive
(buffer- fill Mode)
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