Intel® Quartus® Prime Pro Edition Settings File Reference Manual
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Visible to Intel only — GUID: heu1528324474688
Ixiasoft
1.3.19. AUTO_SHIFT_REGISTER_RECOGNITION
Allows the Compiler to find a group of shift registers of the same length that can be replaced with the altshift_taps megafunction. The shift registers must all use the same clock and clock enable signals, must not have any other secondary signals, and must have equally spaced taps that are at least three registers apart.
Type
Enumeration
Values
- Always
- Auto
- Off
Device Support
- Intel® Arria® 10
- Intel® Cyclone® 10 GX
- Intel® Stratix® 10
Notes
This assignment is included in the Analysis & Synthesis report.
This assignment supports synthesis wildcards.
Syntax
set_global_assignment -name AUTO_SHIFT_REGISTER_RECOGNITION <value>
set_global_assignment -name AUTO_SHIFT_REGISTER_RECOGNITION -entity <entity name> <value>
set_instance_assignment -name AUTO_SHIFT_REGISTER_RECOGNITION -to <to> -entity <entity name> <value>
Default Value
Auto
Example
set_global_assignment -name auto_shift_register_recognition off
set_instance_assignment -name auto_shift_register_recognition off -to foo