Datasheet

AD9548 Data Sheet
Rev. E | Page 88 of 112
Register 0x0680 to Register 0x06B1—Profile 2
Table 99. Priorities—Profile 2
Address Bits Bit Name Description
0x0680 [7] Phase lock scale Controls the phase lock threshold unit scaling.
0 = picoseconds.
1 = nanoseconds.
[6]
Unused
[5:3] Promoted priority User assigned priority level (0 to 7) of the reference associated with Profile 2 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 2, which
ranks that reference relative to the others.
Table 100. Reference Period—Profile 2
Address
Bits
Bit Name
Description
0x0681
[7:0]
Reference period (in
femtoseconds)
Nominal reference period, Bits[7:0]
0x0682 [7:0] Nominal reference period, Bits[15:8]
0x0683 [7:0] Nominal reference period, Bits[23:16]
0x0684 [7:0] Nominal reference period, Bits[31:24]
0x0685 [7:0] Nominal reference period, Bits[39:32]
0x0686 [7:0] Nominal reference period, Bits[47:40]
0x0687 [7:2] Unused
[1:0] Reference period Nominal reference period, Bits[49:48]
Table 101. Tolerance—Profile 2
Address Bits Bit Name Description
0x0688 [7:0] Inner tolerance Inner tolerance, Bits[7:0]
0x0689 [7:0] Inner tolerance, Bits[15:8]
0x068A [7:4] Unused
[3:0] Inner tolerance Inner tolerance, Bits[19:16]
0x068B [7:0] Outer tolerance Outer tolerance, Bits[7:0]
0x068C [7:0] Outer tolerance, Bits[15:8]
0x068D [7:4] Unused
[3:0] Outer tolerance Outer tolerance, Bits[19:16]
Table 102. Validation Timer—Profile 2
Address Bits Bit Name Description
0x068E [7:0] Validation timer
(in milliseconds)
Validation timer, Bits[7:0]
0x068F [7:0] Validation timer, Bits[15:8]
Table 103. Redetect Timer—Profile 2
Address Bits Bit Name Description
0x0690 [7:0] Redetect timer
(in milliseconds)
Redetect timer, Bits[7:0]
0x0691 [7:0] Redetect timer, Bits[15:8]