DAP Technology 1394, Руководство по эксплуатации

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Recorder
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Flow
Selecting this page will show the same packets but now as a flow diagram. The requester is drawn left
(vertical dark gray line) and the responder right (also vertical dark gray line). The packets transmitted
between these two nodes, for the selected transaction, are drawn as arrows. The arrows point into the
direction of transmission (from source to destination). Acknowledge packets are drawn as separate
arrows. The color of the lines is the same as used in the Time View to easily identify the packet types.
You can select a packet in the flow by clicking with your mouse on the arrow or on the labels above the
arrow. For selection, both packet and associated acknowledge (if present) are a unity. If you select a
packet (with acknowledge) this way, it will also be selected in the other views, as in the case of packet
selection on the Packets page.
Below, the same transaction is selected as the example above, but now with the Flow page selected.
As you can see above, the retry-code, response-code and acknowledge codes are also displayed in the
flow graph, so that you easily can see how the transaction is build up.
Data
In the Data page, the data transferred by the transaction is displayed. Below the data of the same
transaction as selected above is displayed.
Note that for Lock transactions, the ‘value’ column will be replaced by tree columns:
argument, data and old data. The argument and data values are from the Lock Request packet and the
old value is extracted from the response packet. In the example below the ‘Bandwidth Available’ register
is accessed with a Lock transaction.