
REV. 0
–16–
AD9937
Table VI. Mode_B (Addr 0x18)
Bit
Breakdown
Bit
Width
Register
Name
Addr
Default
Function
Mode_Reg(0)
(11:0)
(23:12)
(31:24)
12
12
8
ENDADDRESS
STARTADDRESS
MODE_Reg_Addr
Sub Word End Address
Sub Word Start Address
Mode Register Address (Mode B = Addr 0x18)
Mode_Reg(1)
(6:0)
7
8
(12:9)
13
(31:14)
7
1
1
4
1
18
0
0
1
0x0
1
TGACTLINE
TGPATSEL0
TGPATSEL1
TGMASK
OFDPATSEL
Unused
TG Active Line
TG1A/B Pattern Selector (0 = TG0, 1 = TG1)
TG3A/B Pattern Selector (0 = TG0, 1 = TG1)
TG Masking Control (1 = Mask)
OFD Pattern Selection (0 = OFD0, 1 = OFD1)
Mode_Reg(2)
(11:0)
(23:12)
(31:24)
12
12
8
95
130
HDTOG1
HDTOG2
Unused
HD Toggle Position 1
HD Toggle Position 2
Mode_Reg(3)
(11:0)
(23:12)
(31:24)
12
12
8
830
865
HDTOG3
HDTOG4
Unused
HD Toggle Position 3
HD Toggle Position 4
Mode_Reg(4)
(11:0)
(22:12)
(26:23)
(30:27)
31
12
11
4
4
1
1559
525
0
4
HDLASTLEN
VDLEN
VDTOG1
VDTOG2
Unused
HD Last Line Length
VD Field Length
VD Toggle Position 1
VD Toggle Position 2
Mode_Reg(5)
(11:0)
(23:12)
(31:24)
12
12
8
808
822
CLPOBTOG1
CLPOBTOG2
Unused
CLPOB Toggle Position 1
CLPOB Toggle Position 2
Mode_Reg(6)
(11:0)
(23:12)
(31:24)
12
12
8
1543
1557
CLPOBTOG3
CLPOBTOG4
Unused
CLPOB Toggle Position 3
CLPOB Toggle Position 4
Mode_Reg(7)
(11:0)
(23:12)
24
(31:25)
12
12
1
7
1
133
1
HBLKTOG1
HBLKTOG2
H1TOG12POL
Unused
HBLK Toggle Position 1
HBLK Toggle Position 2
H1 Polarity between Toggle Positions 1 and 2
Mode_Reg(8)
(11:0)
(23:12)
24
(31:25)
12
12
1
7
825
868
0
HBLKTOG3
HBLKTOG4
H1TOG34POL
Unused
HBLK Toggle Position 3
HBLK Toggle Position 4
H1 Polarity between Toggle Positions 3 and 4
Mode_Reg(9)
(11:0)
(23:12)
(31:24)
12
12
8
6
143
PBLKTOG1
PBLKTOG2
Unused
PBLK Toggle Position 1
PBLK Toggle Position 2
Mode_Reg(10) (11:0)
12
12
8
831
878
PBLKTOG3
PBLKTOG4
Unused
PBLK Toggle Position 3
PBLK Toggle Position 4
(23:12)
(31:24)
Mode_Reg(11) (10:0)
11
11
10
510
6
PBLKSTART
PBLKSTOP
Unused
PBLK Start Position
PBLK Stop Position
(21:11)
(31:22)
Mode_Reg(12) (10:0)
11
11
1
9
0
1
0
HMASKSTART
HMASKSTOP
H1MASKPOL
Unused
Vertical H Masking Start Position
Vertical H Masking Stop Position
Masking Polarity for H1 during Vertical Blanking Period
(21:11)
22
(31:23)
Mode_Reg(13) (11:0)
12
12
8
99
830
LMSTART0
LMSTART1
Unused
LM Counter Start Position 1
LM Counter Start Position 2
(23:12)
(31:24)