DRV2624 Datasheet, PDF (61/79 Pages) Texas Instruments – DRV2624 Ultra Low Power Closed-Loop LRA/ERM Haptic Driver with Internal Memory

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DRV2624
SLOS893A – DECEMBER 2015 – REVISED DECEMBER 2015
8.7.47 Address: 0x30
Figure 91. 0x30
7
6
5
4
3
2
1
0
CURRENT_K[7:0]
RO-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 48. Address: 0x30
BIT FIELD
7-0 CURRENT_K[7:0]
TYPE
RO
DEFAULT DESCRIPTION
0
Stores a coefficient to be used in calculating the true impedance of the actuator from the
diagnostic run. This coefficient will be used in conjunction with DIAG_Z_RESULT parameter.
8.7.48 Address: 0xFD
Figure 92. 0xFD
7
6
5
4
3
2
1
0
RAM_ADDR[15:8]
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
BIT FIELD
7-0 RAM_ADDR[15:0]
Table 49. Address: 0xFD
TYPE DEFAULT DESCRIPTION
R/W
0
This parameter holds the start address to read/write from/to the internal memory.
8.7.49 Address: 0xFE
Figure 93. 0xFE
7
6
5
4
3
2
1
0
RAM_ADDR[7:0]
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
BIT FIELD
7-0 RAM_ADDR[15:0]
Table 50. Address: 0xFE
TYPE DEFAULT DESCRIPTION
R/W
0
This parameter holds the start address to read/write from/to the internal memory.
8.7.50 Address: 0xFF
Figure 94. 0xFF
7
6
5
4
3
2
1
0
RAM_DATA[7:0]
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
BIT FIELD
7-0 RAM_DATA[7:0]
Table 51. Address: 0xFF
TYPE
R/W
DEFAULT DESCRIPTION
0
This parameter is the data entry for the internal memory. Writing to this parameter will cause
the data written to be stored into the address specified in the RAM_ADDR[15:0] parameter.
After a write, the controller automatically increments the address in RAM_ADDR[15:0]. This is
true for both single byte and multi-byte writes. The same is true for reading from the internal
memory.
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