DRV2624 Datasheet, PDF (38/79 Pages) Texas Instruments – DRV2624 Ultra Low Power Closed-Loop LRA/ERM Haptic Driver with Internal Memory

DRV2624
SLOS893A – DECEMBER 2015 – REVISED DECEMBER 2015
8.7.2 Address: 0x00
Figure 46. 0x00
7
6
5
4
3
CHIPID[3:0]
R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 3. Address: 0x00
2
1
REV[3:0]
R-0
BIT FIELD
7-4 CHIPID[3:0]
3-0 REV[3:0]
TYPE
R
R
DEFAULT DESCRIPTION
0
Provide device identification information
0
DRV2624
1
DRV2625
2
Provides information on the device revision
www.ti.com
0
8.7.3 Address: 0x01
Figure 47. 0x01
7
6
5
4
DIAG_RESULT
[0]
Reserved
PRG_ERROR[
0]
R-0
R/W-0
R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
3
PROCESS_DO
NE[0]
R-0
2
UVLO[0]
R-0
1
OVER_TEMP[0
]
R-0
0
OC_DETECT[0
]
R-0
BIT FIELD
7 DIAG_RESULT
6-5 Reserved
4 PRG_ERROR
3 PROCESS_DONE
2 UVLO
1 OVER_TEMP
0 OC_DETECT
Table 4. Address: 0x01
TYPE
R
R/W
R
R
R
R
R
DEFAULT DESCRIPTION
0
The meaning of this bit changes depending on the mode of operation. In diagnostics mode, this
bit will assert if the actuator is either open or short to itself, to ground, or to vdd. For the
impedance measurement mode, refer to DIAG_Z_RESULT[7:0]. For the calibration mode, this
bit asserts if the calibration fails. This bit is sticky and will clear on read.
0
No issue found.
1
Either diagnostics, or calibration failed.
0
Reserved
0
If the RAM has data that does not comply with the required format, this bit will asset. This bit is
sticky and will clear on read.
0
No error found while reading the RAM.
1
Error found while reading the RAM.
0
Shows if the process executed is done. This bit is sticky and will clear on read.
0
Process is not done.
1
Process is done (either waveform sequencer, diagnostics or auto-calibration). This bit
is cleared when read.
0
If VDD dropts below the UVLO_THRES[2:0], this bit will assert. This bit is sticky and will clear
on read.
0
No VDD droop has been observed.
1
A VDD droop was observed. Clears on read.
0
Shows current status of the thermal protection. This bit is sticky and will clear on read.
0
Temperature is below over-temperature threshold
1
Temperature is above over-temperature threshold. Clears on read.
0
Shows current status of the output overcurrent protection. This bit is sticky and will clear on
read.
0
No over-current detected in OUT+ or OUT-
1
Over-current detected in OUT+ or OUT-. Clears on read.
38
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