IS31SE5117 EVB User Manual
Lumissil Microsystems – www.lumissil.com
16
Rev. B, 10/25/2020
Figure 18: Set EN of KEY0 to disable
Interrupt enabled setting, as shown in Figure 19 below,
Figure 19: KEY's INT and INT_EN
Checking in the box is the action of enable interrupt function, no checking means disable. INT_EN should be set
to enable first when configure key interrupt for KEY0~KEY15. INT_EN is the global interrupt setting. If it is
disabled, all keys interrupt will be turned off even though key is pressed.
Note: If KEY is set to GPIO (High) or GPIO (low) on the IO CONFIG page, the INT_EN corresponding to KEY will
also be disabled.
5.6
Key Calibration
As shown in Figure 20 below,
Figure 20: The calibration of the KEY
“0” in a box means KEY0 and “10” means KEY10. System will force calibrating the corresponding KEY by
pressing button. Please make sure there in no action on keys during calibration, or it will cause errors.
5.7
Noise Display and Threshold Setting
As shown in Figure 21 below,
Figure 21: The noise lights of the KEY
There are 16 noise lights for KEY0~KEY15. Light will be red when the corresponding KEY has noise or it will be
