Datasheet

AD9547 Data Sheet
Rev. E | Page 66 of 104
Addr Opt
1
Name D7 D6 D5 D4 D3 D2 D1 D0 Def
User scratch pad (eight bytes)
0x0C00
Clock part
serial ID
Write user scratch pad[63:0]
0x00
0x0C01
0x00
0x0C02 0x00
0x0C03
0x00
0x0C04
0x00
0x0C05 0x00
0x0C06
0x00
0x0C07 0x00
Status readback (These registers are read only and are accessible during EEPROM transactions.)
0x0D00
R
EEPROM
Unused
Fault
detected
Load in
progress
Save in
progress
0x0D01
R
SYSCLK
Unused
Stable
Unused
Cal
in progress
Lock
detected
0x0D02
R
IRQ monitor
Unused
SYSCLK
unlocked
SYSCLK
locked
Unused
SYSCLK cal
complete
SYSCLK cal
started
0x0D03 R Unused Distribution
sync
Watchdog
timer
EEPROM
fault
EEPROM
complete
0x0D04
R
Switching
Closed
Free run
Holdover
Frequency
unlocked
Frequency
locked
Phase
unlocked
Phase
locked
0x0D05 R Unused History
updated
Frequency
unclamped
Frequency
clamped
Phase slew
unlimited
Phase slew
limited
0x0D06
R
Ref AA
new profile
Ref AA
validated
Ref AA
fault cleared
Ref AA fault
Ref A
new profile
Ref A
validated
Ref A
fault cleared
Ref A
fault
0x0D07 R Ref BB
new profile
Ref BB
validated
Ref BB
fault cleared
Ref BB
fault
Ref B
new profile
Ref B
validated
Ref B
fault cleared
Ref B
fault
0x0D08
R
Unused
0x0D09
R
0x0D0A
R, C
DPLL status
Offset slew
limiting
Phase
build-out
Frequency
lock
Phase lock
Loop
switching
Holdover
Active
Free
running
0x0D0B
R, C
Frequency
clamped
History
available
Active reference priority[2:0]
Unused
Active reference[1:0]
0x0D0C
R, C
Ref A input
reference
status
Profile
selected
Selected profile[2:0]
Valid
Fault
Fast
Slow
0x0D0D
R, C
Ref AA input
reference
status
Profile
selected
Selected profile[2:0]
Valid
Fault
Fast
Slow
0x0D0E
R, C
Ref B input
reference
status
Profile
selected
Selected profile[2:0]
Valid
Fault
Fast
Slow
0x0D0F
R, C
Ref BB input
reference
status
Profile
selected
Selected profile[2:0]
Valid
Fault
Fast
Slow
0x0D10 R, C Unused Unused
0x0D11
R, C
0x0D12
R, C
0x0D13 R, C
0x0D14
R, C
Holdover
history
Tuning word history[47:0]
0x0D15 R, C
0x0D16 R, C
0x0D17
R, C
0x0D18
R, C
0x0D19 R, C
Nonvolatile memory (EEPROM) control
0x0E00
Write protect
Unused
Half rate
mode
Write
enable
0x00
0x0E01
E
Condition
Unused
Condition value[4:0]
0x00
0x0E02
A, E
Save
Unused
Save to
EEPROM
0x00
0x0E03 A, E Load Unused Load from
EEPROM
Unused 0x00