a) scanned keyboard special error mode
b) scanned keyboard with N-key rollover
c) scanned keyboard mode with 2 key lockout
d) sensor matrix mode
When a key is pressed, the debounce circuit waits for 2 keyboard scans and then checks whether the key is still depresse
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answerhappygod
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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 depresse
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