4-8
Root Level Commands
JER?
are used at this time. The following table shows the enabled bits for each useful mask value.
Bits that are not marked as enabled for a mask are blocked from affecting the operation sta-
tus register.
Query :JEE?
The query returns the current decimal value in the Jitter Event Enable Register.
Restrictions Jitter mode. Software revision A.04.00 and above (86100C instruments) with Option 100 or
200.
Returned Format [:JEE] <mask><NL>
JER?
Query :JER?
This query returns the current value of the Jitter Event Register as a decimal number and
also clears the register. Bit 0 of the register is set when characterizing edges in Jitter Mode
fails. Bit 1 of the register is set when pattern synchronization is lost in Jitter Mode. Bit 2 of
the register is set when a parameter change in Jitter Mode has made autoscale necessary. Bit
12 of the Operation Status Register (JIT) indicates that one of the enabled conditions in the
Jitter Event Register has occurred.
Restrictions Jitter mode. Software revision A.04.00 and above (86100C instruments) with Option 100 or
200.
Returned Format [:JER] <value><NL>
LER?
Query :LER?
Table 4-3. Enabled Bits for Mask Values
Mask
Value
Bit 2
AREQD
Bit 1
JLOSS
Bit 0
EFAIL
0
1•
2•
3••
4•
5• •
6••
7•••