MB86613S Datasheet, PDF (74/134 Pages) Fujitsu Component Limited. – IEEE1394 Open HCI Controller

Preliminary
resCount=0
P1
last data
MORE
P2
LAST
INT
Fig. 4.34 State Machine of Program Analysis for isochronous packet Receive
(packet- per- buffer Mode)
4.4.2. Interrupt Handle
There are a number of interrupts possibly occur in the isochronous receive. The following lists the error
name and the condition:
(1) evt_descriptor_read : 06h
when a PCI bus error occurs while the context program moves from the host memory into the work RAM.
(2) evt_unknown : 0Eh
when the context program cannot be processed due to an error found. or, when IRContextControl.bufferFill is
cleared or IRContextControl.isochHeader is cleared in multi- channel mode .
(3) evt_data_write : 08h
when a PCI bus error occurs while the packet data is written from IR- FIFO to host memory.
(4) evt_overrun : 05h
when the IR- FIFO becomes full while receiving the packet. (PCI bus error occurs while receiving the packet.)
(5) ack_data_error : 1Dh
when a dataCRC error or data length error occurs on the received packet.
(6) evt_long_packet : 02h
In packet- per- buffer mode, when the INPUT_LAST command is completed before storing the last packet.
(8) ack_complete : 11h
when a packet is completely received.
73