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E2730A VXI RF TUNER
Address
Base + 0x00xx
20
22
24
26
28
2A
2C
2E
30
32
34
36
38
3A
3C
3E
OPERATION
Table 3-2. VXI Memory/Register Based Commands
Fast Command 1 - Not Used At This Time
Fast Command 2 - Not Used At This Time
Fast Command 3 - Not Used At This Time
Fast Command 4 - Not Used At This Time
Fast Command 5 - Not Used At This Time
Binary Command - Bit-Mapped register that indicates what commands to execute.
Bit 15-11 - Not Used
Bit 10
- Not Used
Bit 9
- Not Used
Bit 8
- Not Used
Bit 7
- Not Used
Bit 6
- Not Used
Bit 5
- Not Used
Bit 4
- Manual ATN Command 1 Bit (ATN, PAM)
Bit 3
- Not Used
Bit 2
- Not Used
Bit 1
- Not Used
Bit 0
- FRQ Command Bit
FRQ_HI_DATA - High Word of Frequency long word (10 Hz resolution)
FRQ_LO_DATA - Low Word of Frequency long word (10 Hz resolution)
Not Used
MAN_ATTN_DATA_1 - Manual Attenuation Data Word 1
Bit 15-9 - ATN Value : Range = 0 - 120 (dB)
Bit 8
- PAM Mode : 0 = OFF ; 1 = ON
Bit 7-0 - Not Used
Not Used
Not Used
Not Used
Not Used
Binary Status Word - This register is reserved to supply status to the user of various
tuner functions.
Bit 15-3 – Unused
Bit 2
- Binary Command Status : 0 = No Error ; 1 = Error
Bit 1
- IF_VALID - Set at the end of a tune word when the IF is valid
Bit 0
- LO_LOCK - Set at the end of a tune word when the LOs are
Locked
Not Used
Description
3-7
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