Constraint Files - FPGA-specific Constraint Elements

Frozen Content

The following is a list of FPGA-specific constraint definitions. These constraints must be used in conjunction with the device vendor's component specifications, to ensure that a particular constraint is supported in that device.

FPGA_CLOCK
FPGA_CLOCK_DUTY_CYCLE
FPGA_CLOCK_FREQUENCY
FPGA_CLOCK_PIN
FPGA_DEVICE
FPGA_DRIVE
FPGA_GLOBAL
FPGA_INHIBIT_BUFFER
FPGA_IOSTANDARD
FPGA_KEEP
FPGA_NOCLOCK
FPGA_PCI_CLAMP
FPGA_PINNUM
FPGA_PULLDOWN
FPGA_PULLUP
FPGA_RESERVE_PIN
FPGA_SLEW
FPGA_DELAY_MAX
FPGA_DELAY_MAX_FROM
FPGA_DELAY_MAX_TO

See Also

Design Portability, Configurations and Constraints

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