ACS8520T Semtech, ACS8520T Datasheet - Page 110

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

Address (hex):
Revision 3.02/October 2005 © Semtech Corp.
ADVANCED COMMUNICATIONS
Register Name
Bit No.
Bit 7
[7:4]
[3:0]
61
cnfg_output_frequency
(TO3 & TO4)
Description
output_freq_4
Configuration of the output frequency available at
output TO4. Many of the frequencies available are
dependent on the frequencies of the T0 APLL and
the T4 APLL. These are configured in Reg. 64 and
Reg. 65. For more detail see the detailed section on
configuring the output frequencies.
output_freq_3
Configuration of the output frequency available at
output TO3. Many of the frequencies available are
dependent on the frequencies of the T0 APLL and
the T4 APLL. These are configured in Reg. 64 and
Reg. 65. For more detail see the detailed section on
configuring the output frequencies.
Bit 6
output_freq_4
Bit 5
Description
Bit 4
FINAL
Page 110
(R/W) Register to configure and
enable the frequencies available
on outputs TO3 and TO4.
Bit Value
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Bit 3
Value Description
Output disabled.
2 kHz.
8 kHz.
Digital2 (Reg. 39 cnfg_digital_frequencies).
Digital1 (Reg. 39 cnfg_digital_frequencies).
T0 APLL frequency/48.
T0 APLL frequency/16.
T0 APLL frequency/12.
T0 APLL frequency/8.
T0 APLL frequency/6.
T0 APLL frequency/4.
T4 APLL frequency/2.
T4 APLL frequency/48.
T4 APLL frequency/16.
T4 APLL frequency/8.
T4 APLL frequency/4.
Output disabled.
2 kHz.
8 kHz.
Digital2 (Reg. 39 cnfg_digital_frequencies).
Digital1 (Reg. 39 cnfg_digital_frequencies).
T0 APLL frequency/48.
T0 APLL frequency/16.
T0 APLL frequency/12.
T0 APLL frequency/8.
T0 APLL frequency/6.
T0 APLL frequency/4.
T4 APLL frequency/64.
T4 APLL frequency/48.
T4 APLL frequency/16.
T4 APLL frequency/8.
T4 APLL frequency/4.
Bit 2
output_freq_3
Default Value
ACS8520 SETS
Bit 1
DATASHEET
www.semtech.com
1000 0110
Bit 0