R&S RTO6, Руководство пользователя

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Protocol analysis
R&S
®
RTO6
559 User Manual 1801.6687.02 ─ 05
Bits
This crucial information defines the length of the cell and - based on the previous cells
- also the cell end position and the next cell start position within a frame.
If, for a given bit count, the Condition value is longer, it is truncated. If the condition
value is shorter, it is padded with 0. Both truncation and padding occur at the left side
of the condition value.
Examples:
●
if "Condition" is "=111000" and the "Bit order" is "MSB", then
–
if "Bits" is 4, the truncated condition is "=1000"
– if "Bits" is 8, the padded condition is "=00111000"
●
if "Condition" is "=111000" and the bit order is "LSB" (accordingly, the condition in
"MSB" format would be "=000111"), then
–
if "Bit s" is 4, the truncated condition is "=1000" for LSB and "=0001" for MSB
– if "Bits" is 8, the padded condition is "=00111000" for LSB and "=00011100" for
MSB
Remote command:
BUS<m>:CMSB:FRAMe<n>:CELL<o>:BITCount
on page 1764
Condition
This text field is used to apply various conditions and functionalities for a cell. Among
others, it can be used to identify mandatory values (such as CRC checksum or ID) that
help to identify a frame. The numeric format and bit order of the condition value has to
match up with what is defined in the fields "Format" and "Bit order".
The following conditions are implemented:
Custom: Manchester / NRZ (option R&S RTO6-K510)