KPCR

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Interpret as KPCR

KCO=TOTEM_POLE, KRE=KRE_0

Keypad Control Register

KRE	Keypad Row Enable 0 (KRE_0): Row is not included in the keypad key press detect. 1 (KRE_1): Row is included in the keypad key press detect.
KCO	Keypad Column Strobe Open-Drain Enable 0 (TOTEM_POLE): Column strobe output is totem pole drive. 1 (OPEN_DRAIN): Column strobe output is open drain.

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