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ABOV Semiconductor Co., Ltd.
P0OD (P0 Open-drain Selection Register): 91H
Initial value: 00H
Configure Open-drain of P0 Port
P0DB (P0 De-bounce Enable Register): DEH
Initial value: 00H
Configure De-bounce Clock of Port
Configure De-bounce of P07 Port
Configure De-bounce of P06 Port
Configure De-bounce of P05 Port
Configure De-bounce of P04 Port
Configure De-bounce of P03Port
Configure De-bounce of P02 Port
NOTE)
1. If the same level is not detected on enabled pin three or four times in a row at the sampling clock, the
signal is eliminated as noise.
2. A pulse level should be input for the duration of 3 clock or more to be actually detected as a valid edge.
3. The port de-bounce is automatically disabled at stop mode and recovered after stop mode release.