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DA7280 Datasheet(PDF) 65 Page - Renesas Technology Corp

Part # DA7280
Description  Wideband LRA/ERM Haptic Driver for Automotive Applications
PDF  80 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

DA7280 Datasheet(HTML) 65 Page - Renesas Technology Corp

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DA7280-Automotive
Wideband LRA/ERM Haptic Driver for Automotive
Applications
Datasheet
Revision 1.4
01-Mar-2022
CFR0011-120-00
65 of 79
© 2022 Renesas Electronics
Table 45: TOP_CTL1 (0x0022)
Bit
Mode
Symbol
Description
Reset
[4]
RW
SEQ_START
Start/stop control of Waveform Memory sequence playback
0x0 = Stop playback and return to IDLE state
0x1 = Start playback
0x0
[3]
RW
STANDBY_E
N
Sets the state DA7280-A returns to after completion of playback,
see Section 5.2.1.
0x0 = Return to IDLE state after playback
0x1 = Return to STANDBY state after playback
0x0
[2:0]
RW
OPERATION
_MODE
Haptic operation mode, see Section 5.2.
0x0 = Inactive mode
0x1 = Direct register override (DRO) mode
0x2 = Playback from PWM data source (PWM) mode
0x3 = Register triggered waveform memory (RTWM) mode
0x4 = Edge triggered waveform memory (ETWM) mode
0x0
Table 46: TOP_CTL2 (0x0023)
Bit
Mode
Symbol
Description
Reset
[7:0]
RW
OVERRIDE_
VAL
Used to set the output drive level in DRO mode. Scales the
contents of ACTUATOR_ABSMAX and/or
ACTUATOR_NOMMAX, depending on whether Active
Acceleration is enabled. See Section 5.2.4.
OVERRIDE_VA
L Value
Scaling factor
when
ACCELERATION_
EN = 0
Scaling factor
when
ACCELERATION_
EN = 1
0x7F
1
1
0x7E
0.992
0.992
...
…step of 0.008…
…step of 0.008…
0x01
0.0079
0.0079
0x00
0
0
0xFF
-0.0079
0
...
…step of 0.008…
…step of 0.008…
0x81
-1
0
0x80
-1
0
0x0
Table 47: SEQ_CTL1 (0x0024)
Bit
Mode
Symbol
Description
Reset
[2]
RW
FREQ_WAV
EFORM_TIM
EBASE
Frequency waveform timebase setting for waveform memory
frames. See Section 5.8.3.
0x0
5.44, 21.76, 43.52, 87.04 ms
0x1
1.36, 5.44, 21.76, 43.52 ms
0x0
[1]
RW
WAVEGEN_
MODE
Enable bit for custom waveform operation, see Section 5.7.5.
● If WAVEGEN_MODE = 0, then set BEMF_SENSE_EN = 1
● If WAVEGEN_MODE = 1,then set BEMF_SENSE_EN = 0
0x0 = Normal wave mode (step/ramp sequences)
0x1 = Custom wave mode (sinewave sequences)
0x0



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