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ManualsBrandsANALOG DEVICES ManualsData collecting ICsData acquisition IC - Analog front end (AFE) 12 Bit CSPBGA 105
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AD9920A
Rev. B | Page 111 of 112
Table 64. Field Registers (Default Values Are Undefined)
Address Data Bits
Default
Value Update Type Name Description
0x00 [4:0] X VD SEQ0 Selected V-sequence for first region in the field.
[9:5] X SEQ1 Selected V-sequence for second region in the field.
[14:10] X SEQ2 Selected V-sequence for third region in the field.
[19:15] X SEQ3 Selected V-sequence for fourth region in the field.
[24:20] X SEQ4 Selected V-sequence for fifth region in the field.
0x01 [4:0] X VD SEQ5 Selected V-sequence for sixth region in the field.
[9:5] X SEQ6 Selected V-sequence for seventh region in the field.
[14:10] X SEQ7 Selected V-sequence for eighth region in the field.
[19:15] X SEQ8 Selected V-sequence for ninth region in the field.
[21:20] 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.
[23:22] MULT_SWEEP1 Enables multiplier mode and/or sweep mode for Region 1.
[25:24] MULT_SWEEP2 Enables multiplier mode and/or sweep mode for Region 2.
0x02 [12:0] X VD HDLASTLEN HD last line length. Line length of last line in the field.
[14:13] X MULT_SWEEP3 Enables multiplier mode and/or sweep mode for Region 3.
[16:15] X MULT_SWEEP4 Enables multiplier mode and/or sweep mode for Region 4.
[18:17] X MULT_SWEEP5 Enables multiplier mode and/or sweep mode for Region 5.
[20:19] X MULT_SWEEP6 Enables multiplier mode and/or sweep mode for Region 6.
[22:21] X MULT_SWEEP7 Enables multiplier mode and/or sweep mode for Region 7.
[24:23] X MULT_SWEEP8 Enables multiplier mode and/or sweep mode for Region 8.
[25] X HDLASTLEN_13 HD last line length bit [13] when 14-bit H-counter is enabled.
0x03 [12:0] X VD SCP0 V-Sequence Change Position 0.
[25:13] X SCP1 V-Sequence Change Position 1.
0x04 [12:0] X VD SCP2 V-Sequence Change Position 2.
[25:13] X SCP3 V-Sequence Change Position 3.
0x05 [12:0] X VD SCP4 V-Sequence Change Position 4.
[25:13] X SCP5 V-Sequence Change Position 5.
0x06 [12:0] X VD SCP6 V-Sequence Change Position 6.
[25:13] X SCP7 V-Sequence Change Position 7.
0x07 [12:0] X VD SCP8 V-Sequence Change Position 8.
[25:13] X VDLEN VD field length (number of lines in the field).
0x08 [12:0] X VD SGACTLINE1 SG Active Line 1.
[25:13] X SGACTLINE2 SG Active Line 2. Set to SG Active Line 1 or maximum if not used.
0x09 [23:0] X VD SGMASK Masking of VSG outputs during SG active line.
0x0A [12:0] X VD CLPMASKSTART1 CLPOB Mask Region 1 start position. Set to 8191 to disable.
[25:13] X CLPMASKEND1 CLPOB Mask Region 1 end position. Set to 0 to disable.
0x0B [12:0] X VD CLPMASKSTART2 CLPOB Mask Region 2 start position. Set to 8191 to disable.
[25:13] X CLPMASKEND2 CLPOB Mask Region 2 end position. Set to 0 to disable.
0x0C [12:0] X VD CLPMASKSTART3 CLPOB Mask Region 3 start position. Set to 8191 to disable.
[25:13] X CLPMASKEND3 CLPOB Mask Region 3 end position. Set to 0 to disable.
0x0D [12:0] X VD PBLKMASKSTART1 PBLK Mask Region 1 start position. Set to 8191 to disable.
[25:13] X PBLKMASKEND1 PBLK Mask Region 1 end position. Set to 0 to disable.
0x0E [12:0] X VD PBLKMASKSTART2 PBLK Mask Region 2 start position. Set to 8191 to disable.
[25:13] X PBLKMASKEND2 PBLK Mask Region 2 end position. Set to 0 to disable.
0x0F [12:0] X VD PBLKMASKSTART3 PBLK Mask Region 3 start position. Set to 8191 to disable.
[25:13] X PBLKMASKEND3 PBLK Mask Region 3 end position. Set to 0 to disable.