IS31SE5117 EVB User Manual
Lumissil Microsystems – www.lumissil.com
22
Rev. B, 10/25/2020
Figure 31: INTB behavior when setting the INT_REPEAT_SET parameter
6.6
SAMPLE_AVERAGE_SET
：
Sampling Frequency and Average Number Setting
As shown in Figure 32 below,
Figure 32: SAMPLE_AVERAGE_SET option
SAMPLE_CNT_SET is to set each button sampling number, the average value of multiple samples is taken as the
final key value to improve the scanning stability.
SAMPLE_TIME_SET is single sampling time for SAMPLE_CNT_SET, then sampling time for each key is:
SAMPLE_TIME_SET*SAMPLE_CNT_SET.
The larger value of SAMPLE_CNT_SET and SAMPLE_TIME_SET, the better the reliability of the key. However at
the same time the sampling speed of the button will be slower. Please set these values according to the actual
application.
CYCLE_DELAY_TIME_SET is a cycle delay time after all keys scanned.
Key Release
Key Press
Key Release
KEYx
INT
Key Press INT
Key Release INT
INT_REPEAT_TIME
MULTI_PRESS_TIME
