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Altera_Forum
Honored Contributor
15 years agoThank You!
For CycloneIII on pg. 595 of “config_handbook.pdf” (Table 9–22): --- Driving nSTATUS low after configuration and initialization does not affect the configured device. …device ignores transitions on nSTATUS in user mode… After all configuration data is received without error and the initialization cycle starts, the target device releases CONF_DONE. Driving CONF_DONE low after configuration and initialization does not affect the configured device. --- But for nCE: “However, all user IO pins will be held in tri-state whilst nCE is pulled high during user mode.” (Solution ID: rd01102011_672)