ACS8520T Semtech, ACS8520T Datasheet - Page 76

• 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
Register Name
Bit No.
Bit No.
Bit 7
[3:0]
Bit 7
[7:6]
[5:4]
[3:0]
Set to zero
1E (cont...)
20
cnfg_ref_selection_priority
(13 & 14)
Description
cnfg_ref_selection_priority_13
This 4-bit value represents the relative priority of
input I13. The smaller the number, the higher the
priority; zero disables the input.
*When Bit 4 (T4_T0_select) of Reg. 4B
(cnfg_registers_source_select) = 0 the priority for
the T0 path is configured.
When this Bit 4 = 1 the priority for the T4 path is
configured.
cnfg_ref_source_frequency
_1
Description
Set to zero
bucket_id_1
Every input has its own Leaky Bucket used for
activity monitoring. There are four possible
configurations for each Leaky Bucket- see Reg. 50
to 5F. This 2-bit field selects the configuration used
for input I1.
Set to zero
cnfg_ref_selection_priority_14
Bit 6
Bit 6
Bit 5
Bit 5
bucket_id_1
Description
Description
Bit 4
Bit 4
FINAL
Page 76
(R/W) Configures the relative
priority of input sources I13 and
I14.
(R/W) Configuration of the
frequency and input monitoring
for input I1.
0001-1111
Bit Value
Bit Value
0000
0000
Bit 3
Bit 3
00
00
01
10
11
Value Description
Input I13 unavailable for automatic selection.
Input I13 priority value.
Value Description
Set to zero
Input I1 activity monitor uses Leaky Bucket
Configuration 0.
Input I1 activity monitor uses Leaky Bucket
Configuration 1.
Input I1 activity monitor uses Leaky Bucket
Configuration 2.
Input I1 activity monitor uses Leaky Bucket
Configuration 3.
8 kHz only
cnfg_ref_selection_priority_13
Bit 2
Bit 2
Set to zero
Default Value
Default Value
ACS8520 SETS
Bit 1
Bit 1
(T0)*
(T4)*
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1111 1110
0000 0000
0000 0000
Bit 0
Bit 0