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Setting
Function
Frequency
Register 1
Frequency
Register 2
Attenuation
Offset
Sweep Rate
Burst Count
Clock Source/
Output Mode
Appendix C
Table C-3. Command Opcode and Parameter Quick Reference
Opcode
Function:
5
0 - Sine wave
1 - Triangle wave
2 - Sin(x)/x for 8.25 radians
3 - Haversine
4 - Square wave
5 - 10 terms of square wave
6 - 4 terms of square wave
7 - Falling ramp
RAM:
0 - RAM 0
1 - RAM 1
1
2
Attenuation: 0 - 20 dB attenuation
4
Correction: 0 - enable amplitude correction
3
7
8
Aux Out/Aux In level:
9
0 - Normal
1 - Inverted
RAM Bank:
0 - RAM 0
1 - RAM 1
2 - RAM 2
3 - RAM 3
Mode:
0 - Continuous (fixed)
1 - FSK
2 - Wave hop
3 - Single burst
Parameter
8 - 20 terms of falling ramp
9 - Rising ramp
10 - 20 terms of rising ramp
11 - White noise
12 - Modulated white noise
13 - 3rd, 4th, 5th harm chord
14 - 8 cycle rising sine wave
15 - Pos. 1/2 cycle sine wave
2 - RAM 2
3 - RAM 3
four bytes
four bytes
1 - 0 dB attenuation
1 - disable amplitude correction
two bytes
six bytes
two bytes
Clock Source:
0 - External
1 - Gated
2 - Burst
3 - Internal
4 - Input Data Register
Frequency Register:
1 - Register 1
2 - Register 2
4 - Triggered burst
5 - Sweep
6 - Direct DAC access
7 - Fast frequency change
HP E1340A Register-Based Programming 257
Aux Out:
0 - 42 MHz osc.
1 - Pulse/cycle
2 - Zero cross
3 - Sweep sync
RAM Size:
0 - 4k
1 - 8k
2 - 16k
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