Datasheet

AD9979
Rev. C | Page 51 of 56
Address
Data Bit
Content
Default
Value
Update
Type Name Description
67 [15:0] 0000 SCK TGCORE_UPDT_VD
Enable VD update of timing core registers. Each bit corresponds to
one address location.
TGCORE_UPDT_VD[0] = 1; update Address 0x30 on VD rising edge.
TGCORE_UPDT_VD[1] = 1; update Address 0x31 on VD rising edge.
…
TGCORE_UPDT_VD[15] = 1; update Address 0x37 on VD rising edge.
[27:16] Unused Set unused bits to 0, if accessed.
68 to 72 [27:0] Unused Set unused registers to 0, if accessed.
Table 33. HPAT Registers (HPAT Registers Always Start at Address 0x800)
Address
Data Bit
Content
Default
Value
1
Update
Type Name Description
00 [12:0] X SCP HBLKTOGO1
First HBLK toggle position for odd lines, or RA0H1REPA/RA0H1REPB/
RA0H1REPC.
[25:13] X HBLKTOGO2
Second HBLK toggle position for odd lines, or RA1H1REPA/RA1H1REPB/
RA1H1REPC.
[27:26] Unused Set unused bits to 0.
01 [12:0] X SCP HBLKTOGO3
Third HBLK toggle position for odd lines, or RA2H1REPA/RA2H1REPB/
RA2H1REPC.
[25:13] X HBLKTOGO4
Fourth HBLK toggle position for odd lines, or RA3H1REPA/RA3H1REPB/
RA3H1REPC.
[27:26] Unused Set unused bits to 0.
02 [12:0] X SCP HBLKTOGO5
Fifth HBLK toggle position for odd lines, or RA4H1REPA/RA4H1REPB/
RA4H1REPC.
[25:13] X HBLKTOGO6
Sixth HBLK toggle position for odd lines, or RA5H1REPA/RA5H1REPB/
RA5H1REPC.
[27:26] Unused Set unused bits to 0.
03 [12:0] X SCP HBLKTOGE1
First HBLK toggle position for even lines, or RA0H2REPA/RA0H2REPB/
RA0H2REPC.
[25:13] X HBLKTOGE2
Second HBLK toggle position for even lines, or RA1H2REPA/RA1H2REPB/
RA1H2REPC.
[27:26] Unused Set unused bits to 0.
04 [12:0] X SCP HBLKTOGE3
Third
HBLK toggle position for even lines, or RA2H2REPA/RA2H2REPB/
RA2H2REPC.
[25:13] X HBLKTOGE4
Fourth HBLK toggle position for even lines, or RA3H2REPA/RA3H2REPB/
RA3H2REPC.
[27:26] Unused Set unused bits to 0.
05 [12:0] X SCP HBLKTOGE5
Fifth HBLK toggle position for even lines, or RA4H2REPA/RA4H2REPB/
RA4H2REPC.
[25:13] X HBLKTOGE6
Sixth HBLK toggle position for even lines, or RA5H2REPA/RA5H2REPB/
RA5H2REPC.
[27:26] Unused Set unused bits to 0.
06 [12:0] X SCP HBLKSTARTA HBLK Repeat Area Start Position A. Used during HBLK Mode 2.
[25:13] X HBLKSTARTB HBLK Repeat Area Start Position B. Used during HBLK Mode 2.
[27:26] Unused Set unused bits to 0.
07 [12:0] X SCP HBLKSTARTC HBLK Repeat Area Start Position C. Used during HBLK Mode 2.
[27:13] Unused Set unused bits to 0.