DAP Technology 1394, Руководство по эксплуатации

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Filter/Trigger
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The following sub-selections are possible:
· Any Ack (incl. erroneous Ack): If this option is selected, the jump-condition will be true
for every acknowledge that is detected, including erroneous acknowledges or invalid
acknowledges.
Erroneous acknowledges are 8 bits long (which identifies an acknowledge), for which
the first 4 bits are not the inverse of the last 4 bits. Invalid acknowledges are 8 bits long
for which the first 4 bits correctly are the inverse of the last 4 bits, but with an invalid
acknowledge code.
·
valid Ack ...: If this option is selected, additional check boxes appear where you can
specify one or more valid acknowledge codes. If a valid acknowledge was detected with
a code for which the corresponding checkbox is checked, the jump-condition is true.
In the example above, the jump-condition is only true for an acknowledge with code
'Ack_complete'.
·
invalid Ack: If this option is selected, the jump-condition is true if an invalid acknowledge
was detected. An invalid acknowledge is 8 bits long and the first 4 bits are the inverse of
the last 4 bits, but with an invalid acknowledge code.
· erroneous Ack: If this option is selected, the jump-condition is true if an erroneous
acknowledge was detected. An erroneous acknowledge is 8 bits for which the first 4 bits
are not the inverse of the last 4 bits.
·
Last Wait was Event ...: This option is used to specify a Event condition. If the last Wait was