AD6684 datasheet(101/107 Pages) AD

101 / 107 page

Data Sheet

AD6684

Rev. 0 | Page 101 of 107

Address

Name

Bits

Bit Name

Settings

Description

Reset

Access

0x0578

JESD204B

map JTX

LMFC offset

[7:5]

Reserved

Reserved.

0x0

[4:0]

LMFC phase offset value

LMFC phase offset value; reset value for

LMFC phase counter when SYSREF± is

asserted. Used for deterministic delay

applications.

0x0

R/W

0x0580

JESD204B

map JTX DID

config-

uration

[7:0]

JESD204B Tx DID value

JESD204B serial device identification (DID)

number.

0x0

R/W

0x0581

JESD204B

map JTX BID

config-

uration

[7:4]

Reserved

Reserved.

0x0

[3:0]

JESD204B Tx BID value

JESD204B serial bank identification (BID)

number (extension to DID).

0x0

R/W

0x0583

JESD204B

map JTX

LID0 config-

uration

[7:5]

Reserved

Reserved.

0x0

[4:0]

Lane 0 LID value

JESD204B serial lane identification (LID)

number for Lane 0.

0x0

R/W

0x0585

JESD204B

map JTX

LID1 config-

uration

[7:5]

Reserved

Reserved.

0x0

[4:0]

Lane 1 LID Value

JESD204B serial lane identification (LID)

number for Lane 1.

0x2

R/W

0x058B

JESD204B

map JTX

SCR L

config-

uration

JESD204B scrambling (SCR)

0x1

R/W

JESD204B scrambler disabled. SCR = 0.

JESD204B scrambler enabled. SCR = 1.

[6:5]

Reserved

Reserved.

0x0

[4:0]

JESD204B lanes (L)

0x1

0x0

One lane per link (L = 1).

0x1

Two lanes per link (L = 2).

0x058C

JESD204B

map JTX F

config-

uration

[7:0]

Number of octets per

frame (F)

Number of octets per frame.

F = Register 0x058C, Bits[7:0] + 1.

0x1

0x058D

JESD204B

map JTX K

config-

uration

[7:5]

Reserved

Reserved.

0x0

[4:0]

Number of frames per

multiframe (K)

JESD204B number of frames per multi-

frame (K = Register 0x058D, Bits[4:0] + 1).

Only values where F × K are divisible by 4

can be used.

0x1F

R/W

00011

K = 4.

00111

K = 8.

01100

K = 12.

01111

K = 16.

10011

K = 20.

10111

K = 24.

11011

K = 28.

11111

K = 32.

0x058E

JESD204B

Map JTX M

config-

uration

[7:0]

Number of converters per

link

0x1

00000000

Link connected to one virtual converter

(M = 1).

00000001

Link connected to two virtual converters

(M = 2).

00000011

Link connected to four virtual converters

(M = 4).

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