AD9898 datasheet(13/52 Pages) AD

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AD9898

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Table II. System Register Address Map (Addr 0x14) (continued)

Bit

Default

Content

Width

(Decimal) Register Name

Sys_Reg(9)

(31:23)

VTPLEN3

Vertical Sequence No. 3: Length between Repetitions

V1STARTPOL3

Vertical Sequence No. 3: V1 Start Polarity

V2STARTPOL3

Vertical Sequence No. 3: V2 Start Polarity

V3STARTPOL3

Vertical Sequence No. 3: V3 Start Polarity

V4STARTPOL3

Vertical Sequence No. 3: V4 Start Polarity

(18:10)

V1TOG1POS3

Vertical Sequence No. 3: V1 Toggle Position 1

(9:1)

V1TOG2POS3

Vertical Sequence No. 3: V1 Toggle Position 2

V2TOG1POS3 [8]

Sys_Reg(10)

(31:24)

V2TOG1POS3 [7:0]

Vertical Sequence No. 3: V2 Toggle Position 1

(23:15)

V2TOG2POS3

Vertical Sequence No. 3: V2 Toggle Position 2

(14:6)

V3TOG1POS3

Vertical Sequence No. 3: V3 Toggle Position 1

(5:0)

V3TOG2POS3 [8:3]

Sys_Reg(11)

(31:29)

V3TOG2POS3 [2:0]

Vertical Sequence No. 3: V3 Toggle Position 2

(28:20)

V4TOG1POS3

Vertical Sequence No. 3: V4 Toggle Position 1

(19:11)

V4TOG2POS3

Vertical Sequence No. 3: V4 Toggle Position 2

(10:1)

HBLKHPOS

H1 Pulse ON Position during Blanking Period

Unused

Sys_Reg(12)

(31:20)

2283

HDLEN

12-Bit Gray Code HD Counter Value (Gray Code Number)

(19:10)

130

HLEN

10-Bit HL Counter Value

(9:1)

100

OLEN

9-Bit OL Counter Value

BLLEN [8]

Sys_Reg(13)

(31:24)

BLLEN[7:0]

9-Bit BL Counter Value

(23:16)

118

MSHUTLEN

MSHUT Sequence Length

(15:5)

1048

VSGTOG1_0

VSG Sequence No. 1 Toggle Position 1

(4:0)

VSGTOG1_1 [10:6]

Sys_Reg(14)

(31:26)

1198

VSGTOG1_1 [5:0]

VSG Sequence No. 2 Toggle Position 1

(25:18)

VSGLEN

VSG Pulsewidth

(17:9)

SUBCK1TOG1

SUBCK1 First Toggle Position

(8:0)

SUBCK1TOG2

SUBCK1 Second Toggle Position

Sys_Reg(15)

(31:23)

SUBCK2TOG1

SUBCK2 First Toggle Position

(22:14:)

SUBCK2TOG2

SUBCK2 Second Toggle Position

(13:2)

2243

CLPTOG1

CLPOB Toggle Position No. 1

(1:0)

CLPTOG2 [11]

Sys_Reg(16)

(31:22)

2278

CLPTOG2 [10:0]

CLPOB Toggle Position No. 2

(21:18)

VDRISE

VD Toggle Position No. 1

(17:8)

120

HDRISE

HD Toggle Position No. 2

(7:0)

Unused

*Register value must be a gray code number. (See Gray Code Registers section.)

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