User`s manual

Channel Voltage
Gain Calibration
Registers
The Channel Voltage Gain Calibration Registers store voltage gain
calibration constants in non-volatile memory. There are 16 registers, one
for each output channel. The register at base + 120
16
stores channel 1,
base + 122
16
stores channel 2, up to base 13E
16
which stores channel 16.
This register is non-volatile.
Address
Base + 120
16
through
Base + 13E
16
Bit 15141312111009080706050403020100
msb lsb
WRITE Unused Voltage Gain Calibration Constant
Voltage Gain Calibration Constant: Writing a 12-bit value to this field
stores a new constant used to calibrate the channel output. The 16-bit value
is a 2’s compliment number. Values are in the range:
000
16
minimum gain
800
16
nominal gain
FFF
16
maximum gain
Notes Registers 00100
16
through 001BE
16
are located in non-volatile (FLASH)
memory. Writing to this memory requires a complicated sequence of
register accesses not documented here. It is recommended that calibration
be performed using the SCPI driver for the module, not register access.
Non-volatile memory has finite life, based upon the number of writes.
Use care when writing to this memory.
The contents of this register are loaded into volatile memory at power-on
and not used on an on-going basis.
Appendix B Agilent E1418A Register-Based Programming 141