AD9548SLASHPCBZ datasheet(83/112 Pages) AD

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AD9548

Rev. 0 | Page 83 of 112

Table 77. Phase Build-Out Switching

Address

Bits

Bit Name

Description

0507

[7:3]

Unused

[2:0]

Phase master

threshold priority

Threshold priority level (a value of 0 to 7, with 0 (default) being the highest priority

level). References with a selection priority value lower than this value are treated as

phase masters (see the Profile Registers (Register 0600 to Register 07FF) section for

the selection priority value).

PROFILE REGISTERS (REGISTER 0600 TO REGISTER 07FF)

Note that the default value of every bit is 0 for Profile 0 to Profile 7.

Table 78. Priorities—Profile 0

Address

Bits

Bit Name

Description

0600

[7:6]

Unused

[5:3]

Promoted priority

User-assigned priority level (0 to 7) of the reference associated with Profile 0 while

that reference is the active reference. The numeric value of the promoted priority

must be less than or equal to the numeric value of the selection priority.

[2:0]

Selection priority

User-assigned priority level (0 to 7) of the reference associated with Profile 0, which

ranks that reference relative to the others.

Table 79. Reference Period—Profile 0

Address

Bits

Bit Name

Description

0601

[7:0]

Reference period (in

femtoseconds)

Nominal reference period, Bits[7:0]

0602

[7:0]

Nominal reference period, Bits[15:8]

0603

[7:0]

Nominal reference period, Bits[23:16]

0604

[7:0]

Nominal reference period, Bits[31:24]

0605

[7:0]

Nominal reference period, Bits[39:32]

0606

[7:0]

Nominal reference period, Bits[47:40]

0607

[7:2]

Unused

[1:0]

Reference period

Nominal reference period, Bits[49:48]

Table 80. Tolerance—Profile 0

Address

Bits

Bit Name

Description

0608

[7:0]

Inner tolerance

Inner tolerance, Bits[7:0]

0609

[7:0]

Inner tolerance, Bits[15:8]

060A

[7:4]

Unused

[3:0]

Inner tolerance

Inner tolerance, Bits[19:16]

060B

[7:0]

Outer tolerance

Outer tolerance, Bits[7:0]

060C

[7:0]

Outer tolerance, Bits[5:8]

060D

[7:4]

Unused

[3:0]

Outer tolerance

Outer tolerance, Bits[19:16]

Table 81. Validation Timer—Profile 0

Address

Bits

Bit Name

Description

060E

[7:0]

Validation timer

(in milliseconds)

Validation timer, Bits[7:0]

060F

[7:0]

Validation timer, Bits[15:8]

Table 82. Redetect Timer—Profile 0

Address

Bits

Bit Name

Description

0610

[7:0]

Redetect timer

(in milliseconds)

Redetect timer, Bits[7:0]

0611

[7:0]

Redetect timer, Bits[15:8]

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