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8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide
Operation/Questionable Slot Status
•
The Operation/Questionable Slot Status consist of a condition and an
event register.
•
A "rising" bit in the condition register is copied to the event register.
•
A "falling" bit in the condition register has no effect on the event
register.
•
Reading the condition register is non-destructive.
•
Reading the event register is destructive.
•
A summary of the event register, the condition register and the enable
mask is set in the status byte.
Operation Slot Status Register
•
Bit 0 is set if the laser is switched on.
•
Bit 1 is set if the Coherence Control is switched on.
•
Bit 3 is set if Power Meter zeroing or Tunable Laser module lambda
zeroing is ongoing.
•
Bit 4 is set if the attenuator output is enabled (shutter open).
•
Bits 5 - 7 are set if the wavelength offset table is enabled (see
•
All other bits are unused, and therefore set to 0.
Questionable Slot Status Register
•
Bit 0 is set if excessive power is set by the user for any source module or
if excessive averaging time is set for any Power Meter.
•
Bit 1 is set if the last Power Meter zeroing failed.
•
Bit 2 is set if temperature is out of range.
•
Bit 3 is set if laser protection is switched on.
•
Bit 4 is set if the module has not settled, as during the automatic
settling of a Tunable Laser module.
•
Bit 5 is set if the module is out of specifications, or if lambda zeroing
failed for a Tunable Laser module.
•
Bit 6 is set if ARA (auto realign) is recommended.
•
Bit 7 is set if the duty cycle is out of range.
•
Bit 8 is set if coherence control is uncalibrated
•
Bit 9 is set if attenuator beam path protection is enabled (shutter is
closed)
•
Bit 10 is set if lambda zeroing is recommended.
•
Bit 11 is set if the 81490A transmitter needs to be calibrated.
•
Bit 12 is set if the 81950A frequency offset does not equal zero.
Introduction to Programming
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