CG635 Remote Programming
41
CG635 Synthesized Clock Generator
Standard Event Status Register
Bit Name Meaning
0
OPC
Operation complete. All previous commands have completed.
See command *OPC.
1 Reserved
2
QYE
Query error occurred.
3
DDE
Device dependent error.
4
EXE
Execution error. A command failed to execute correctly
because a parameter was out of range.
5
CME
Command error. The parser detected a syntax error
6 Reserved
7
PON
Power on. The CG635 has been power cycled.
The standard event status register may be queried with the *ESR? command. The
standard event status enable register (*ESE) may be used to control the setting of the
ESB summary bit in the serial poll status byte.
Communication Error Status Register
Bit Name Meaning
0
PE
Parity error. An RS-232 parity error was detected.
1
FE
Framing error. An RS-232 framing error was detected.
2
NF
Noise flag. An RS-232 character may have been received
incorrectly due to noise on the line.
3
OR
Overrun error. An RS-232 character was received before the
CG635 had time to process the previous character.
4
OVFL
The input buffer of the CG635 overflowed.
5
NL
The CG635 was addressed to talk under GPIB, but there were
no listeners.
6 Reserved
7
DCAS
Device clear active state. The CG635 received a device clear or
selected device clear command.
The communication error status register may be queried with the CESR? command. The
communication error status enable register (CESE) may be used to control the setting of
the CESB summary bit in the serial poll status byte.
Instrument Status Register
Bit Name Meaning
0
EE_BDRY
Eeprom write occurred outside of eeprom.
1
EE_PROT
Eeprom write occurred in protected eeprom.
2
EE_VERF
Eeprom write failed to verify.
3
CMF_RESET
A clock-monitor-fail reset has occurred.
4
COP_RESET
A COP-timeout reset has occurred.
5 ILGL_RESET
An
illegal-instruction reset has occurred.
6
RB_COMM
An installed rubidium oscillator failed to communicate.
7 Reserved
