AD9992BBCZ datasheet(85/92 Pages) AD

85 / 92 page

AD9992

Rev. C | Page 85 of 92

Address

Data Bits

Default

Value

Update

Type

Mnemonic

Description

[2]

VD/SG

SUBCKHP_TOG1_13

Bit 13 for SUBCK HP Toggle 1. For 14-bit H-counter mode.

[3]

VD/SG

SUBCKHP_TOG2_13

Bit 13 for SUBCK HP Toggle 2. For 14-bit H-counter mode.

Table 38. Update Control Registers

Address

Data

Bits

Default

Value

Update

Mnemonic

Description

0xB0

[15:0]

1803

SCK

AFE_UPDT_SCK

Each bit corresponds to one address location.

AFE_UPDT_SCK [0] = 1, update Address 0x00 on SL rising edge.

AFE_UPDT_SCK [1] = 1, update Address 0x01 on SL rising edge.

…

AFE_UPDT_SCK [15] = 1, update Address 0x0F on SL rising edge.

0xB1

[15:0]

E7FC

SCK

AFE_UPDT_VD

Each bit corresponds to one address location.

AFE_UPDT_VD [0] = 1, update Address 0x00 on VD rising edge.

AFE_UPDT_VD [1] = 1, update Address 0x01 on VD rising edge.

…

AFE_UPDT_VD [15] = 1, update Address 0x0F on VD rising edge.

0xB2

[15:0]

F8FD

SCK

MISC_UPDT_SCK

Enable SCK update of miscellaneous registers, Address 0x10 to

Address 0x1F.

0xB3

[15:0]

0702

SCK

MISC_UPDT_VD

Enable VD update of miscellaneous registers, Address 0x10 to

Address 0x1F.

0xB4

[15:0]

FFF9

SCK

VDHD_UPDT_SCK

Enable SCK update of VDHD registers, Address 0x20 to Address 0x2F.

0xB5

[15:0]

0006

SCK

VDHD_UPDT_VD

Enable VD update of VDHD registers, Address 0x20 to Address 0x2F.

Table 39. Extra Registers

Address

Data

Bits

Default

Value

Update

Mnemonic

Description

0xD4

[0]

SCK

TEST

Test mode only. Set to 0.

[1]

GPO_INT_EN

Allow observation of internal signals at GPO5 to GPO8 outputs:

GPO5: OUTCONTROL.

GPO6: HBLK.

GPO7: CLPOB.

GPO8: PBLK.

[9:2]

TEST

Test mode only. Set to 0.

0xD7

[0]

SCK

TEST

Test mode only. Set to 0.

[1]

XV24_SWAP

Set to 1 to change the V-driver output configuration so that XV15 is

output on the XV24 output pin. Useful with special vertical sequence

alternation mode when the XV24 register is reserved for pattern selection.

0xD8

[27:0]

SCK

START

Recommended start-up register. Should be set to 0x888.

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