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(7546, 7547) Ports P00-P07 to input mode; key-on wakeup on for input P00

Latest Updated:03/01/2005

Question:

(Interrupts)   Can ports P00 to P07 be set to input mode and key-on wakeup enabled only for input to P00? [2005/03/01]

Answer:

No.
Setting ports P00 to P07 to input mode enables key-on wakeup. However, bits 5 to 7 in the interrupt edge selection register (003Ah) can disable P00, P04 and P06 individually. If P01 to P03, P05 and P07 are set to input mode, their key-on wakeup functions are enabled. (#104950)
Suitable Products
7546
7547