ACS8525T View Datasheet(PDF) - Semtech Corporation
Part Name
Description
MFG CO.
'ACS8525T' PDF : 112 Pages View PDF
ACS8525 LC/P
ADVANCED COMMUNICATIONS
Address (hex): 1C
Register Name cnfg_ref_selection_priority
SEC3
FINAL
Description
(R/W) Configures the relative
priority of input source SEC3.
DATASHEET
Default Value 0000 0100
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
programmed_priority_SEC3
Bit 0
Bit No.
Description
Bit Value Value Description
[7:4]
[3:0]
Not used.
cnfg_ref_selection_priority_9
This 4-bit value represents the relative priority of
input SEC3. The smaller the number, the higher the
priority; zero disables the input.
-
0000
0001-1111
-
Input SEC3 unavailable for automatic selection.
Input SEC3 priority value.
Address (hex): 22
Register Name
cnfg_ref_source_frequency
<input>
For Reg. 22, <input> =
SEC1 TTL
Description
(R/W) Configuration of the
frequency and input monitoring
for input <input>.
Default Value
SEC1 TTL=
0000 0000
Bit 7
divn_<input>
Bit 6
lock8k_<input>
Bit 5
Bit 4
Bucket_id_<input>
Bit 3
Bit 2
Bit 1
reference_source_frequency_<input>
Bit 0
Bit No.
Description
Bit Value Value Description
7
6
[5:4]
divn_<input>
This bit selects whether or not input SEC1 TTL is
divided in the programmable pre-divider prior to
being input to the DPLL and frequency monitor- see
Reg. 46 and Reg. 47 (cnfg_freq_divn).
lock8k_<input>
This bit selects whether or not input SEC1 TTL is
divided in the preset pre-divider prior to being input
to the DPLL. This results in the DPLL locking to the
reference after it has been divided to 8 kHz. This bit
is ignored when divn_<input> is set (bit =1).
Bucket_id_<input>
Every input has its own Leaky Bucket used for
activity monitoring. There are four possible
configurations for each Leaky Bucket- see Reg. 50
to Reg. 5F. This 2-bit field selects the configuration
used for input <input>.
0
Input <input> fed directly to DPLL and monitor.
1
Input <input> fed to DPLL and monitor via pre-
divider.
0
Input <input> fed directly to DPLL.
1
Input <input> fed to DPLL via preset pre-divider.
00
Input <input> activity monitor uses Leaky Bucket
Configuration 0.
01
Input <input> activity monitor uses Leaky Bucket
Configuration 1.
10
Input <input> activity monitor uses Leaky Bucket
Configuration 2.
11
Input <input> activity monitor uses Leaky Bucket
Configuration 3.
Revision 3.01/August 2005 © Semtech Corp.
Page 55
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