Quartus II Settings File Reference Manual - Altera

6–42 Chapter 6: Fitter Assignments
CRC_ERROR_OPEN_DRAIN
CRC_ERROR_OPEN_DRAIN
Type
Specifies whether the Open-Drain feature on the CRC Error pin should be enabled or
not.
Using this feature decouples the voltage level of the CRCERROR pin from V CCIO.
A pull-up resistor must be connected to the pin when this feature is enabled.
Boolean
Device Support
This setting can be used in projects targeting the following device families:
■ Arria V
■ Cyclone III
■ Cyclone III LS
■ Cyclone IV E
■ Cyclone V
■ HardCopy III
■ Stratix III
■ Stratix V
Syntax
set_global_assignment -name CRC_ERROR_OPEN_DRAIN
Example
set_global_assignment -name crc_error_open_drain on
set_global_assignment -name crc_error_open_drain off
See Also
■ “CRC_ERROR_OPEN_DRAIN” on page 6–42
■ “ERROR_CHECK_FREQUENCY_DIVISOR” on page 6–116
Quartus Settings File June 2012 Altera Corporation
Reference Manual