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Publication No. 980938 Rev. K
Model T940 User Manual
Astronics Test Systems
Soft Front Panel Operation 5-39
delay. See the
Record Offset
section in Chapter 8 for more details about using
this feature.
The valid offset range is from 0 to 63 MCLKs.
The relevant VXI
plug&play
API function is:
•
tat964_setRecordParameters
Note: Once calibrated for an Independent, Linked or DRS configuration, this
offset should not be changed.
Record Type
This pull-down control programs the record type.
The selections for this pull-down control are:
Table 5-36: Record Type Settings
Settings
Description
Normal
Data stored in the record memory will be at the same offset as
the pattern set memory.
Indexed
Data stored in the record memory will begin at offset 0. The
record index memory contains the information needed to realign
the record memory with the sequence step data.
The relevant VXI
plug&play
API function is:
•
tat964_setRecordParameters
Error Count Basis
This pull-down control programs the sequencer error count basis.
This control allows the user to select which error signal to use to determine the
error count.
The selections for this pull-down control are:
Table 5-37: Error Count Basis Settings
Setting
Description
Typical Usage
Local
Use local error
Error counting is globally enabled
Qualified Local
Use BERREN qualified local
error
Error counting is enabled per pattern by the
BERREN bit qualifier
DRS/Linked
Use DRS/Linked error
DRS/Linked error counting is globally
enabled
Qualified
DRS/Linked
Use BERREN qualified
DRS/Linked error
DRS/Linked error counting is enabled per
pattern by the BERREN bit qualifier
If the Error Count Basis is enabled for DRS or Linked operation, then the ERROR
signal must be coupled between DRMs/Sequencers via the TTL/ECL or Linked
TRG bus respectively. The ECL TRG Bus is recommended for data rates greater
than 10 MHz. This is discussed in more detail in the
Jumping, Halting,