Datasheet

AD9923A
Rev. A | Page 83 of 84
Table 58. Field Registers
Address
(Hex)
Data Bits
Default
Value
Update
Type
Name Description
00 [4:0] Undefined VD SEQ0 Selected V-sequence for first region in the field.
[9:5] Undefined SEQ1 Selected V-sequence for second region in the field.
[14:10] Undefined SEQ2 Selected V-sequence for third region in the field .
[19:15] Undefined SEQ3 Selected V-sequence for fourth region in the field.
[24:20] Undefined SEQ4 Selected V-sequence for fifth region in the field.
01 [4:0] Undefined VD SEQ5 Selected V-sequence for sixth region in the field.
[9:5] Undefined SEQ6 Selected V-sequence for seventh region in the field.
[14:10] Undefined SEQ7 Selected V-sequence for eighth region in the field.
[19:15] Undefined SEQ8 Selected V-sequence for ninth region in the field.
02 [1:0] Undefined VD MULT_SWEEP0 Enables multiplier mode and/or sweep mode for Region 0.
0: multiplier off/sweep off.
1: multiplier off/sweep on.
2: multiplier on/sweep off.
3: multiplier on/sweep on.
[3:2] Undefined MULT_SWEEP1 Enables multiplier mode and/or sweep mode for Region 1.
[5:4] Undefined MULT_SWEEP2 Enables multiplier mode and/or sweep mode for Region 2.
[7:6] Undefined MULT_SWEEP3 Enables multiplier mode and/or sweep mode for Region 3.
[9:8] Undefined MULT_SWEEP4 Enables multiplier mode and/or sweep mode for Region 4.
[11:10] Undefined MULT_SWEEP5 Enables multiplier mode and/or sweep mode for Region 5.
[13:12] Undefined MULT_SWEEP6 Enables multiplier mode and/or sweep mode for Region 6.
[15:14] Undefined MULT_SWEEP7 Enables multiplier mode and/or sweep mode for Region 7.
[17:16] Undefined MULT_SWEEP8 Enables multiplier mode and/or sweep mode for Region 8.
03 [11:0] Undefined VD SCP0 V-Sequence Change Position 0.
[12] Undefined Unused Must be set to 0.
[24:13] Undefined SCP1 V-Sequence Change Position 1.
04 [11:0] Undefined VD SCP2 V-Sequence Change Position 2.
[12] Undefined Unused Must be set to 0.
[24:13] Undefined SCP3 V-Sequence Change Position 3.
05 [11:0] Undefined VD SCP4 V-Sequence Change Position 4.
[12] Undefined Unused Must be set to 0.
[24:13] Undefined SCP5 V-Sequence Change Position 5.
06 [11:0] Undefined VD SCP6 V-Sequence Change Position 6.
[12] Undefined Unused Must be set to 0.
[24:13] Undefined SCP7 V-Sequence Change Position 7.
07 [11:0] Undefined VD SCP8 V-Sequence Change Position 8.
[12] Undefined Unused Must be set to 0.
[24:13] Undefined VDLEN VD field length (number of lines in the field).
08 [12:0] Undefined VD HDLAST HD last line length. Line length of last line in the field.
[25:13] Undefined VSTARTSECOND Start position for second V-pattern on SG active line.
09 [4:0] Undefined VD VPATSECOND Selected second V-pattern group for SG active line.
[20:5] Undefined SGMASK Masking of VSG outputs during SG active line.
0A [23:0] Undefined VD SGPATSEL Selection of VSG patterns for each VSG output.
0B [11:0] Undefined VD SGACTLINE1 SG Active Line 1.
[12] Undefined Unused Must be set to 0.
[24:13] Undefined SGACTLINE2 SG Active Line 2.