ds3102 Maxim Integrated Products, Inc., ds3102 Datasheet - Page 61

• Manufacturer Part Number: ds3102
• Description: Stratum 3 Timing Card Ic With Synchronous Ethernet Support
• Manufacturer: Maxim Integrated Products, Inc.

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 7: Frame-Sync Input Monitor Alarm (FSMON). This real-time status bit indicates the current status of the
frame-sync input monitor. See Section 7.9.2.6.
Bit 6: T4 DPLL Lock Status (T4LOCK). This real-time status bit indicates the current phase-lock status of the T4
DPLL. See Sections
Bit 5: T0 DPLL Frequency Soft Alarm (T0SOFT). This real-time status bit indicates whether the T0 DPLL is
tracking its reference within the soft alarm limits specified in the SOFT[6:0] field of the
Section 7.7.6.
Bit 4: T4 DPLL Frequency Soft Alarm (T4SOFT). This real-time status bit indicates whether the T4 DPLL is
tracking its reference within the soft alarm limits specified in the SOFT[6:0] field of the
Section 7.7.6.
Bits 2 to 0: T0 DPLL Operating State (T0STATE[2:0]). This real-time status field indicates the current state of the
T0 DPLL state machine. Values not listed below correspond to invalid (unused) states. See Section 7.7.1.
Rev: 012108
____________________________________________________________________________________________ DS3102
0 = No alarm
1 = Alarm
0 = Not locked to selected reference
1 = Locked to selected reference
0 = No alarm; frequency is within the soft alarm limits
1 = Soft alarm; frequency is outside the soft alarm limits
0 = No alarm; frequency is within the soft alarm limits
1 = Soft alarm; frequency is outside the soft alarm limits
001 = Free-run
010 = Holdover
100 = Locked
101 = Prelocked 2
110 = Prelocked
111 = Loss-of-lock
FSMON
7
1
7.5.3
and 7.7.6.
T4LOCK
6
0
OPSTATE
Operating State Register
09h
T0SOFT
5
0
T4SOFT
4
0
—
3
0
2
0
T0STATE[2:0]
DLIMIT3
DLIMIT3
1
0
register. See
register. See
61 of 141
0
1