DA7282 datasheet(57/88 Pages) RENESAS

Part #	DA7282

Description	LRA/ERM Ultra-Low Power Haptic Driver with Multiple Input Triggers and Integrated Waveform Memory

PDF	88 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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DA7282

LRA/ERM Ultra-Low Power Haptic Driver with

Multiple Input Triggers and Integrated

Waveform Memory

Datasheet

Revision 3.1

10-Feb-2022

CFR0011-120-00

57 of 87

5.9

General Data Format

This section describes the data format used by the three different data input sources (DRO, PWM,

and Waveform Memory). Four bits are used for storing the envelope value of snippets in Waveform

Memory. Interpretation of the data is different depending on ACCELERATION_EN. For an overview

of the data interpretation with and without Active Acceleration enabled, see Figure 31 and Figure 32.

100 %

-100 %

0x7

0x6

0x5

0x2

0x1

0x0

0xF

0xE

0xD

0x9

0x8

0x7F

0x7E

0x7D

0x02

0x01

0x00

0xFF

0xFE

0xFD

0x81

0x80

PWM

[Mark / space]

DRO

MEM

FULL_BRAKE_THRS[3:0]

full brake

(only for PWM)

Drive positive direction

Drive negative direction

100%

50%

Waveform/Data source

Driving Strength

[%]

Data format for ERM and LRA

ACCELERATION_EN = 0

4 bits

2's c.

8 bits

2's c.

Figure 31: Overview of Data Formats with Acceleration Disabled

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