DAP Technology 1394, Руководство по эксплуатации

Страница: 59 / 458

Commander
59 Copyright © DapTechnology B.V., 2005-2019 - All Rights Reserved., 5/20/2019
Layout
The same fields displayed in the 'Fields' page are displayed in the 'Layout' page. But now the layout
of the packet is shown. Each line shows 32 bits or one quadlet. The exact bit position of each field is
shown, including the field name (mostly some abbreviation because of space limitation) and the
value. Reserved fields and fields with fixed values are shown too. They have no field name, but only
a value. Below is an example of the 'Layout' page for the same response packet as above.
Errors
If the selected packet has one or more errors, or if errors are detected because the selected 'Show As
Packet' type does not correspond to the real packet type, an error page is added to the 'Fields' and
'Layout' pages. Selecting this page will list all detected errors. If one or more fields or data is missing,
the 'Field' and 'Layout' pages will also reflect the error by displaying the missing parts in red.
Likewise, when there is too much packet data, the parts that are too much are also displayed red in
the 'Fields' and 'Layouts' pages. Below is an example of the errors page for a packet with a data CRC
error.
6.2.4. Phy Register R/W
The 'Phy Registers R/W' page consists of the following parts:
·
Register layout
·
Register-fields table
· Node box
·
Write box