IS31SE5117 EVB User Manual
Lumissil Microsystems – www.lumissil.com
20
Rev. B, 10/25/2020
Figure 27: INTB action when AUTO_CLEAR_INT_ENABLE is enabled
6.3
SPREAD_SPECTRUM_SET
:
Spread Spectrum Setting
As shown in Figure 28 below,
Figure 28: INTB action when AUTO_CLEAR_INT_ENABLE is enabled
SPREAD_SPECTRUM_SWEEP_RATE is defines the spread spectrum sweep rate. If
SPREAD_SPECTRUM_SWEEP_RATE = 0, then the spread spectrum is disabled.
SPREAD_SPECTRUM_AMPLITUDE is defines the amplitude of spread spectrum frequency change.
The setting of spread sweep frequency and the spread amplitude should be carefully selected to reduce the effect
of EMI.
Key Release
Key Press
Key Release
INT
INT
AUTO_CLEAR_INT_ENA
BLE=ENABLE
If I2C no read 02h, 03h
AUTO_CLEAR_INT_ENA
BLE=ENABLE
If I2C read 02h, 03h
Read 02h, 03h
Read 02h, 03h
AUTO_CLEAR_INT_TIME
Auto_Release INT