zl30121 Zarlink Semiconductor, zl30121 Datasheet - Page 23

• Manufacturer Part Number: zl30121
• Description: Sonet/sdh Low Jitter System Synchronizer
• Manufacturer: Zarlink Semiconductor

(Hex)
Addr
2A
2B
2C
2D
2E
1F
20
21
22
23
24
25
26
27
28
29
2F
30
dpll1_modesel
dpll1_refsel
dpll1_ref_fail_mask
dpll1_wait_to_restore
dpll1_ref_rev_ctrl
dpll1_ref_pri_ctrl_0
dpll1_ref_pri_ctrl_1
dpll1_ref_pri_ctrl_2
dpll1_ref_pri_ctrl_3
dpll1_lock_holdover_status
dpll1_pullinrange
dpll2_ctrl_0
dpll2_ctrl_1
dpll2_modesel
dpll2_refsel
dpll2_ref_fail_mask
dpll2_wait_to_restore
dpll2_ref_rev_ctrl
Register
Name
Table 5 - Register Map (continued)
Description
Register
Reset
Value
(Hex)
See
3C
3C
00
00
00
10
32
54
76
04
03
00
04
02
00
00
00
Zarlink Semiconductor Inc.
ZL30121
DPLL2 Control
Control register for the ref4 and re5 priority
Control register for the pull-in range
Control register for the DPLL1 mode of
operation
DPLL1 reference selection or reference
selection status
Control register to mask each failure indicator
(SCM, CFM, PFM and GST) used for automatic
reference switching and automatic holdover
Control register to indicate the time to restore a
previous failed reference
Control register for the ref0 to ref7 enable
revertive signals
Control register for the ref0 and ref1 priority
values
Control register for the ref2 and ref3 priority
values
values
Control register for the ref6 and ref7 priority
values
DPLL1 lock and holdover status register
Control register to program the DPLL2: hitless
switching, the phase slope limit and DPLL
enable
Control register to program the DPLL2:
filter_out_en, freq_offset_en, revert enable
Control register to select the mode of operation
of the DPLL2
DPLL2 reference selection or reference
selection status
Control register to mask each failure indicator
(SCM, CFM, PFM and GST) used for automatic
reference switching and automatic holdover
Control register to indicate the time to restore a
previous failed reference for the DPLL2 path
Control register for the ref0 to ref7 enable
revertive signals
23
Description
Data Sheet
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R