ACS8520 SETS
ADVANCED COMMUNICATIONS
Address (hex): 1D (cont...)
Register Name cnfg_ref_selection_priority
(11 & 12)
FINAL
DATASHEET
Description
(R/W) Configures the relative
priority of input sources I11 and
I12.
Default Value
(T0)* 1101 1100
(T4)* 0000 0000
Bit 7
Bit 6
Bit 5
cnfg_ref_selection_priority_12
Bit 4
Bit 3
Bit 2
Bit 1
cnfg_ref_selection_priority_11
Bit 0
Bit No.
Description
Bit Value Value Description
[3:0]
cnfg_ref_selection_priority_11
This 4-bit value represents the relative priority of
input I11. The smaller the number, the higher the
priority; zero disables the input.
*The priority of input I11 depends on the value of
the MASTSLVB pin at power-up. If MASTSLVB is High
(master) at power-up, then the priority will default to
12. If MASTSLVB is Low (slave) at power-up, then
the priority will default to 1.
*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.
0000
0001-1111
Input I11 unavailable for automatic selection.
Input I11 priority value.
.
Address (hex): 1E
Register Name cnfg_ref_selection_priority
(13 & 14)
Description
(R/W) Configures the relative
priority of input sources I13 and
I14.
Default Value
(T0)* 1111 1110
(T4)* 0000 0000
Bit 7
Bit 6
Bit 5
cnfg_ref_selection_priority_14
Bit 4
Bit 3
Bit 2
Bit 1
cnfg_ref_selection_priority_13
Bit 0
Bit No.
Description
Bit Value Value Description
[7:4]
cnfg_ref_selection_priority_14
This 4-bit value represents the relative priority of
input I14. 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.
0000
Input I14 unavailable for automatic selection.
0001-1111 Input I14 priority value.
Revision 3.02/October 2005 © Semtech Corp.
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