Altera Parallel Flash Loader IP - Manual (Page 29)

Type Port Constraint Type Delay Value
Output asynchro‐
nous
fpga_nconfig set_false_path
—
pfl_flash_access_request set_false_path
—
flash_nce set_false_path
—
flash_nwe set_false_path
—
flash_noe set_false_path
—
flash_addr set_false_path
—
Bidirectional
synchronous
flash_data • Normal read mode:
set_false_path
• Burst read mode:
set_input_delay
Burst read mode:
Board delay from
fpga_dclk
pin of the CPLD to
DCLK
pin of
the FPGA
Output synchro‐
nous
fpga_data set_input_delay
Board delay + T
SU
of the FPGA
fpga_dclk set_input_delay
Board delay from fpga_dclk pin
of the CPLD to
DCLK
pin of the
FPGA
Simulating PFL Design
You can simulate the behavior of the PFL IP core with the ModelSim ® -Altera software as it configures an
FPGA. This section provides guidelines on the PFL simulation for FPGA configuration.
Note: PFL simulation is based on functional netlist, and does not support gate-level simulation. PFL
simulation does not reflect the true behavior of the hardware. Altera certifies the PFL IP core based
on actual hardware testing, and not through PFL simulation. The PFL simulation only provides
primitive behavioral simulation.
Table 8: Files Required for PFL Simulation in the ModelSim-Altera Software
File/Library Description
.vo or .vho The Verilog HDL or VHDL output file of the PFL IP core.
.sdo The Standard Delay Format Output file ( .sdo ) of the PFL IP core.
Simulation libraries:
• altera
• altera_mf
• maxii
• maxv
The precompiled library files for Altera IP core primitives and Altera CPLDs
in the ModelSim-Altera software.
Test bench Test bench file to establish the interface between the PFL IP core and the flash
memory device.
Flash simulation model
files
The simulation model files for the flash memory devices in the PS or FPP
configuration. For the flash simulation model file for each flash memory
device, refer to the respective flash memory device manufacturer.
UG-01082
2015.01.23
Simulating PFL Design 29
Parallel Flash Loader IP Core User Guide Altera Corporation
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