MB86613S Просмотр технического описания (PDF) - Fujitsu

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MB86613S

IEEE1394 Open HCI Controller

Fujitsu 

Preliminary

and dataAddress field contains ”10000000h” which is the start address of host memory where the packet is

stored for descriptor- 1 and ”20000000h” for descriptor- 2. Also, the branchAddress field for descriptor- 2 con-

tains ”90000000h” which is the start address of host memory where the context program- 2 to control the host

memory for storing the next packet is stored and the Z field contains ”2h” which is a number of descriptor in

context program- 2.

The ” i ” field of the INPUT_LAST command is being set to ”11b” so that an interrupt event is reported after

completion of isochronous packet receive process.

INPUT_MORE

(descriptor- 1)

INPUT_LAST

(descriptor- 2)

INPUT_MORE

(descriptor- 3)

INPUT_LAST

(descriptor- 4)

IRCommandPtr

descriptorAddress=8000000h

Z=2

context program- 1

cmd

key

=2

=0

i0 b3 w0

reqCount=1024

dataAddress=10000000h

80000000h

cmd

key

=3

=0

i3 b3

resCount=1024

reqCount=1024

dataAddress=20000000h

branchAddress=9000000h

Z=2

resCount=1024

context program- 2

cmd

key

=2

=0

i0 b3 w0

reqCount=1024

dataAddress=30000000h

90000000h

cmd

key

=3

=0

i3 b3

resCount=1024

reqCount=1024

dataAddress=40000000h

branchAddress=8000000h

Z=2

resCount=1024

Fig. 8.18 Example of context program Format for isochronous packet Receive

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