DA7281 datasheet(65/88 Pages) RENESAS

65 / 88 page

DA7281

LRA/ERM Haptic Driver with Multiple I²C

Addresses, Integrated Waveform Memory, and

Wideband Support

Datasheet

Revision 3.1

10-Feb-2022

CFR0011-120-00

65 of 87

Bit

Mode

Symbol

Description

Reset

[1]

E_UVLO

Under-voltage fault, supply below the UVLO threshold

Clear to attempt restart

(write 1 to clear)

0x0

[0]

E_SEQ_CONTINUE

IRQ indicating that playback of a new sequence has

occurred because SEQ_CONTINUE is set to 1

(write 1 to clear)

0x0

Table 23: IRQ_EVENT_WARNING_DIAG (0x0004)

Bit

Mode

Symbol

Description

Reset

[7]

E_LIM_DRIVE

IRQ indicating that playback is limited because the power

supply level is lower than the sequence target

(write 1 to E_WARNING to clear)

0x0

[6]

E_LIM_DRIVE_ACC

IRQ indicating that acceleration is limited because the

power supply level is lower than required for the

acceleration target

(write 1 to E_WARNING to clear)

0x0

[4]

E_MEM_TYPE

Indicates that the memory data type configured in register

MEM_DATA_SIGNED does not match the acceleration

configuration (ACCELERATION_EN).

MEM_DATA_SIGNED = 1 for ACCELERATION_EN = 0

MEM_DATA_SIGNED = 0 for ACCELERATION_EN = 1

(write 1 to E_WARNING to clear)

0x0

[3]

E_OVERTEMP_WARN

Over-temperature warning, chip temperature has exceeded

the warning limit of 105 °C

(write 1 to E_WARNING to clear)

0x0

Table 24: IRQ_EVENT_SEQ_DIAG (0x0005)

Bit

Mode

Symbol

Description

Reset

[7]

E_SEQ_ID_FAULT

IRQ indicating that requested sequence ID configured in

PS_SEQ_ID is not valid

(write 1 to E_SEQ_FAULTto clear)

0x0

[6]

E_MEM_FAULT

Indicates that the Waveform Memory is corrupted (empty,

invalid snippet ID, invalid frame structure)

(write 1 to E_SEQ_FAULTto clear)

0x0

[5]

E_PWM_FAULT

IRQ indicating that the PWM input signal has timed out

(write 1 to E_SEQ_FAULTto clear)

0x0

Table 25: IRQ_STATUS1 (0x0006)

Bit

Mode

Symbol

Description

Reset

[7]

STA_OC

Over-current / short circuit fault status

0x0

[6]

STA_ACTUATOR

Actuator fault status

0x0

[5]

STA_WARNING

System warnings status

0x0

[4]

STA_PAT_FAULT

Sequence faults status

0x0

DA7281 Datasheet(PDF) 65 Page - Renesas Technology Corp

DA7281 Datasheet(HTML) 65 Page - Renesas Technology Corp

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