DA7280-00FVC datasheet(32/85 Pages) RENESAS

32 / 85 page

DA7280

LRA/ERM Haptic Driver with Multiple Input

Triggers, Integrated Waveform Memory and

Wideband Support

Datasheet

Revision 3.2

02-Mar-2022

CFR0011-120-00

32 of 84

3. While in the DRIVE state, set SEQ_CONTINUE = 1 to repeat the sequence.

4. When the haptic sequence is completed, DA7280 will signal this by setting nIRQ = 0 and setting

SEQ_DONE_M = 1. DA7280 will then return to IDLE or STANDBY state, depending on the value

of STANDBY_EN.

5. Clear the nIRQ and SEQ_DONE_M signals, set SEQ_DONE_M =1.

At any time during operation in RTWM mode, set OPERATION_MODE or SEQ_START = 0 to return

to the IDLE or STANDBY state.

Output starts

switching

Write

OPERATION_MODE = 3

IDLE/STANDBY

Sequence

playback

Write SEQ_DONE_M = 1

to clear register and nIRQ

DA7280

ready to

play next

sequence

Sequence is

continued

Are PS_SEQ_ID and

PS_SEQ_LOOP already

configured?

Configure the

PS_SEQ_LOOP

Yes

Create a start

event by writing to

SEQ_START

SEQ_CONTINUE = 1?

Select a sequence

via PS_SEQ_ID

Yes

OPERATION_MODE = 3?

Yes

nIRQ = 0 and

SEQ_DONE_M = 1

Sequence playback is

complete and output

stops switching

SEQ_CONTINUE

can be set if

required during

playback

Can be skipped

for subsequent

sequence

playbacks

Figure 15: Operation in RTWM Mode

5.6.5.5

Edge Triggered Waveform Memory (ETWM) Mode

The following registers should be set up prior to operation in ETWM mode:

● Set SNP_MEM_x (where x = 0 to 99), see Section 5.8.

● Set FREQ_WAVEFORM_TIMEBASE according to the minimum or maximum sequence timebase

required.

● If custom waveform sequences are required, see Section 5.7.5.

● Set WAV_MEM_LOCK = 0 to prohibit access to the waveform memory if required.

Figure 16 shows how to operate the device in ETWM mode.

1. Before first-time playback, set GPIx_SEQUENCE_ID, GPI_x_MODE, and GPIx_POLARITY, see

Section 5.2.7. These bits determine which sequence each of the GPI pins points to, whether they

trigger single or multiple sequences, and whether they react to rising, falling, or both edges.

DA7280-00FVC Datasheet(PDF) 32 Page - Renesas Technology Corp

DA7280-00FVC Datasheet(HTML) 32 Page - Renesas Technology Corp

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