CXP1021Q
2. Key combination selection
This function can be used to reduce the number of keys needed.
(a) Selection
Selection is made through Pin 61 (KEYSEL). Selection is determined by the state of this pin immediately
after reset of the CXP1021Q.
When Pin 61 (KEYSEL) is high:
/,
/
keys are combined.
When Pin 61 (KEYSEL) is low:
/,
/
keys are independent.
(b) Operation when Pin 18 (KEYSEL) is high
Key name
Description
Function differs depending on length of time pressed.
,
If the length of time pressed is:
0.5 seconds or less ·········· keys function as tune select keys ( , )
longer than 0.5 seconds ··· keys function as fast-forward, rewind keys ( , )
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