DRV2605L Datasheet, PDF (36/69 Pages) Texas Instruments – DRV2605L 2 to 5.2 V Haptic Driver for LRA and ERM With Effect Library and Smart-Loop Architecture

DRV2605L
SLOS854C – MAY 2014 – REVISED SEPTEMBER 2014
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8.6.3 Real-Time Playback Input (Address: 0x02)
Figure 32. Real-Time Playback Input Register
7
6
5
4
3
2
1
0
RTP_INPUT[7:0]
R/W-0
Table 6. Real-Time Playback Input Register Field Descriptions
BIT FIELD
7-0 RTP_INPUT[7:0]
TYPE
R/W
DEFAULT DESCRIPTION
0
This field is the entry point for real-time playback (RTP) data. The
DRV2605L playback engine drives the RTP_INPUT[7:0] value to the load
when MODE[2:0] = 5 (RTP mode). The RTP_INPUT[7:0] value can be
updated in real-time by the host controller to create haptic waveforms. The
RTP_INPUT[7:0] value is interpreted as signed by default, but can be set to
unsigned by the DATA_FORMAT_RTP bit in register 0x1D. When the
haptic waveform is complete, the user can idle the device by setting
MODE[2:0] = 0, or alternatively by setting STANDBY = 1.
8.6.4 Library Selection (Address: 0x03)
Figure 33. Library Selection Register
7
6
5
Reserved
4
HI_Z
R/W-0
3
Reserved
2
R/W-0
1
LIBRARY_SEL[2:0]
R/W-0
0
R/W-1
BIT FIELD
7-5 Reserved
4 HI_Z
3 Reserved
2-0 LIBRARY_SEL
Table 7. Library Selection Register Field Descriptions
TYPE DEFAULT DESCRIPTION
R/W
0
This bit sets the output driver into a true high-impedance state. The device
must be enabled to go into the high-impedance state. When in hardware
shutdown or standby mode, the output drivers have 15 kΩ to ground. When
the HI_Z bit is asserted, the hi-Z functionality takes effect immediately, even
if a transaction is taking place.
R/W
1
Waveform library selection value. This bit determines which library the
playback engine selects when the GO bit is set. For additional details on the
ERM libraries see the Table 1 section.
0: Empty
1: TS2200 Library A
2: TS2200 Library B
3: TS2200 Library C
4: TS2200 Library D
5: TS2200 Library E
6: LRA Library
7: TS2200 Library F
36
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