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When a key is pressed, the debounce circuit waits for 2 keyboard scans and then checks whether the key is still depressed in

When a key is pressed, the debounce circuit waits for 2 keyboard scans and then checks whether the key is still depressed in Correct Answer scanned keyboard with N-key rollover

In this mode, When a key is pressed, the debounce circuit waits for 2 keyboard scans and then checks whether the key is still depressed. If it is still depressed, the code is entered in FIFO RAM.

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