KDDR

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Interpret as KDDR

KCDD=INPUT, KRDD=INPUT

Keypad Data Direction Register

KRDD	Keypad Row Data Direction 0 (INPUT): ROWn pin configured as an input. 1 (OUTPUT): ROWn pin configured as an output.
KCDD	Keypad Column Data Direction Register 0 (INPUT): COLn pin is configured as an input. 1 (OUTPUT): COLn pin is configured as an output.

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