ACS8525T Semtech, ACS8525T Datasheet - Page 48

• Manufacturer Part Number: ACS8525T
• Description: Line Card Protection Switch for SONET/SDH Systems
• Manufacturer: Semtech

Address (hex):
Revision 3.01/August 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Register Name
Sync_alarm
Bit No.
Bit 7
[2:0]
5
4
3
09 (cont...)
sts_operating_mode
DPLL2_Lock
Description
DPLL1_freq_soft_alarm
DPLL1 has a programmable frequency limit and
“soft” alarm limit. The frequency limit is the extent
to which it will track a reference before limiting. The
“soft” limit is the point beyond which the DPLL
tracking a reference will cause an alarm. This bit
reports the status of the “soft” alarm.
DPLL2_freq_soft_alarm
DPLL2 has a programmable frequency limit and
“soft” alarm limit. The frequency limit is the extent
to which it will track a reference before limiting. The
“soft” limit is the point beyond which the DPLL
tracking a reference will cause an alarm. This bit
reports the status of the “soft” alarm.
Not used.
DPLL1_operating_mode
This field is used to report the state of the internal
finite state machine controlling DPLL1.
Bit 6
DPLL1_freq_
soft_alarm
Bit 5
Description
DPLL2_freq_
soft_alarm
Bit 4
FINAL
Page 48
(RO) Current operating state of
the device’s internal state
machine.
Bit Value
Bit 3
000
001
010
011
100
101
110
111
0
1
0
1
-
Value Description
DPLL1 tracking its reference within the limits of the
programmed “soft” alarm.
DPLL1 tracking its reference beyond the limits of
the programmed “soft” alarm.
DPLL2 tracking its reference within the limits of the
programmed “soft” alarm.
DPLL2 tracking its reference beyond the limits of
the programmed “soft” alarm.
-
Not used.
Free Run.
Holdover.
Not used.
Locked.
Pre-locked2.
Pre-locked.
Phase Lost.
Bit 2
DPLL1_operating_mode
Default Value
ACS8525 LC/P
Bit 1
DATASHEET
www.semtech.com
0000 0001
Bit 0