ACS8520T Semtech, ACS8520T Datasheet - Page 62

• Manufacturer Part Number: ACS8520T
• Description: Synchronous Equipment Timing Source (SETS) for Stratum 3/4E/4 and SMC Systems
• Manufacturer: Semtech

Address (hex):
Address (hex):
Revision 3.02/October 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Register Name
Sync_ip_alarm
Register Name
SYNC2K_alarm T4_DPLL_Lock
Bit No.
Bit No.
Bit 7
Bit 7
2
1
0
7
08 (cont...)
09
sts_interrupts
T4_status
Description
AMI2_LOS
Interrupt indicating that an AMI LOS error has
occurred on input I2. Latched until reset by software
writing a 1 to this bit.
AMI1_Viol
Interrupt indicating that an AMI Violation error has
occurred on input I1. Latched until reset by software
writing a 1 to this bit.
AMI1_LOS
Interrupt indicating that an AMI LOS error has
occurred on input I1. Latched until reset by software
writing a 1 to this bit.
sts_operating
Description
SYNC2K_alarm
Reports current status of the external Sync monitor
alarm.
Bit 6
Bit 6
T0_DPLL_freq_
soft_alarm
Bit 5
Bit 5
Description
T4_inputs_
failed
Description
T4_DPLL_freq_
soft_alarm
Bit 4
Bit 4
FINAL
Page 62
(R/W) Bits [23:16] of the interrupt
status register.
AMI2_Viol
(RO) Current operating state of
the device’s internal state
machine.
Bit Value
Bit Value
Bit 3
Bit 3
0
1
0
1
0
1
0
1
AMI2_LOS
Value Description
Input I2 has had no LOS error.
Input I2 has had a LOS error.
Writing 1 resets the input to 0.
Input I1 has had no violation error.
Input I1 has had a violation error.
Writing 1 resets the input to 0.
Input I1 has had no LOS error.
Input I1 has had a LOS error.
Writing 1 resets the input to 0.
Value Description
External Sync monitor not in alarm condition.
External Sync monitor in alarm condition.
Bit 2
Bit 2
T0_DPLL_operating_mode
AMI1_Viol
Default Value
Default Value
ACS8520 SETS
Bit 1
Bit 1
DATASHEET
www.semtech.com
0101 0000
AMI1_LOS
0100 0001
Bit 0
Bit 0