MB86613S Datasheet, PDF (56/134 Pages) Fujitsu Component Limited. – IEEE1394 Open HCI Controller

Preliminary
2) response packet Transmit:
Time specified in the timeStamp section in the OUTPUT_MORE_Immediate or OUTPUT_LAST_Immediate
command is compared with the cycle- timer value to validate the evt_timeout.
3) ping packet Transmit:
When the ’ p’ flag in the OUTPUT_LAST or OUTPUT_LAST_Immediate command is set, time after the packet
is transmitted until the acknowledge or self- ID packet is received is stored in the timeStamp section by the
cycle- timer value.
(1), (2), (3),
(4), (7)
I1
I2
(5), (6), (8)- (15)
z=0
I3
z>0
START
LOAD
Fig. 4.4 State Machine of Interrupt Handle for Asynchronous Packet Transmit
4.1.3. Packet Format
Figures 4- 5 to 4- 15 show various packets’ format when stored in the FIFO from the host memory or work
RAM. Link- Tx block converts format of these packets shown from Open HCI to 1394 and transmits the pack-
ets onto the 1394 bus.
srcBusID
31
16 15
0
spd
tLabel
rt tCode4
destination ID
destinationOffsetHi
destinationOffsetLo
Fig. 4.5 Quadlet Read Request Transmit Packet
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