AW86225
October 2021 V1.9
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11 Copyright © 2020 SHANGHAI AWINIC TECHNOLOGY CO., LTD
pin is set to high.
Standby Mode
The device switches standby mode when the power supply voltages are OK and RSTN pin set to high. In this
mode I
2
C interface is accessible, other modules except LDO module are still powered down. Customer can
force device to this mode by setting STANDBY to high. Also in this mode, customer can initialize waveform
library in SRAM. Device will be switched to this mode after haptic waveform playback finished.
Active Mode
The device is fully operational in this mode. H-bridge driver circuits will start to work. Users can send a playback
request to make device in this mode.
Power On And Power Down Sequence
This device power on sequence is illustrated in the following figure:
RSTN
3ms
I2C
VDD
I
2
C
configuration
100 μs
100 μs
Figure 12 Power On Sequence
Playback Sequence
Make sure the device is not in POWER-DOWN MODE before sending a playback request, then the playback
sequence is illustrated in the following figure:
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