ODT Launches Off System Clock - ODT Launches Off System Clock
Description In designs with a separate address and command clock, the ODT output launches from the system clock, not from this address and command clock. This issue affects the following configurations: DDR2 SDRAM controller (not DDR SDRAM) ODT is turned on CAS latency is set to three The design uses a separate address and command clock and not the default system clock This issue has no design impact. Resolution Use a CAS latency of four, which means one extra cycle of read latency, or use the DDR2 SDRAM High-Performance controller, which uses the ALTMEMPHY megafunction to transfer all the address and command outputs to the correct clock. This issue will not be fixed.
Custom Fields values:
['novalue']
Troubleshooting
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True
['novalue']
['FPGA Dev Tools Quartus II Software']
novalue
10.0
['Programmable Logic Devices']
['novalue']
['novalue']
['novalue'] - 2021-08-25
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