AD9992BBCZ datasheet(78/92 Pages) AD

78 / 92 page

AD9992

Rev. C | Page 78 of 92

Table 33. Memory Configuration and MODE Registers

Address

Data Bits

Default Value

Update Type

Mnemonic

Description

0x28

[4:0]

SCK

VPATNUM

Total number of V-pattern groups.

[9:5]

SEQNUM

Total number of V-sequences.

0x2A

[2:0]

SCK

MODE

Total number of fields in MODE.

0x2B

[4:0]

SCK

FIELD0

Selected first field in MODE.

[9:5]

FIELD1

Selected second field in MODE.

[14:10]

FIELD2

Selected third field in MODE.

[19:15]

FIELD3

Selected fourth field in MODE.

[24:20]

FIELD4

Selected fifth field in MODE.

0x2C

[4:0]

SCK

FIELD5

Selected sixth field in MODE.

[9:5]

FIELD6

Selected seventh field in MODE.

Table 34. Timing Core Registers

Address

Data Bits

Default

Value

Update

Type

Mnemonic

Description

0x30

[5:0]

SCK

H1POSLOC

H1 rising edge location.

[13:8]

H1NEGLOC

H1 falling edge location.

[16]

H1POL

H1 polarity control:

0: Inverse of Figure 19.

1: No inversion.

0x31

[5:0]

SCK

H2POSLOC

H2 rising edge location (H5 in HCLK Mode 3).

[13:8]

H2NEGLOC

H2 falling edge location (H5 in HCLK Mode 3).

[16]

H2POL

H2 polarity (H5 in HCLK Mode 3):

0: Inverse of Figure 19.

1: No inversion.

0x32

[5:0]

SCK

HLPOSLOC

HL rising edge location.

[13:8]

HLNEGLOC

HL falling edge location.

[16]

HLPOL

HL polarity control:

0: Inverse of Figure 19.

1: No inversion.

0x33

[5:0]

SCK

RGPOSLOC

RG rising edge location.

[13:8]

RGNEGLOC

RG falling edge location.

[16]

RGH2POL

RG polarity control:

0: Inverse of Figure 19.

1: No inversion.

0x34

[0]

SCK

H1HBLKRETIME

Retime H1, H2, HL HBLK to the internal clock:

0: No retime.

1: Retime.

[1]

H2HBLKRETIME

Recommended setting is retime enabled (1). Setting to 1

adds one cycle delay to programmed HBLK positions.

[2]

HLHBLKRETIME

[3]

HL_HBLK_EN

Enable HBLK for HL output:

0: Disable.

1: Enable.

[7:4]

HCLK_WIDTH

Enables wide H-clocks during HBLK interval. Set to 0 to

disable.

0x35

[2:0]

SCK

H1DRV

H1 drive strength:

0: Off.

1: 4.3 mA.

2: 8.6 mA.

3: 12.9 mA.

4: 4.3 mA.

5: 8.6 mA.

6: 12.9 mA.

7: 17.2 mA.

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