DRV10975 Datasheet, PDF (39/57 Pages) Texas Instruments – 12-V, Three-Phase, Sensorless BLDC Motor Driver

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DRV10975
SLVSCP2 – JANUARY 2015
9.5 Register Maps
9.5.1 I²C Serial Interface
DRV10975 provides an I²C slave interface with slave address '101 0010'. TI recommends a pullup resistor
4.7 kΩ to 3.3 V for I²C interface port SCL and SDA.
Four read/write registers (0x00:0x03) are used to set motor speed and control device registers and EEPROM.
Device operation status can be read back through 12 read-only registers (0x10:0x1E). Another 12 EEPROM
registers (0x20:0x2B) can be accessed to program motor parameters and optimize the spin-up profile for the
application.
9.5.2 Register Map
Register Name
SpeedCtrl1 ⁽¹⁾
SpeedCtrl2 ⁽¹⁾
DevCtrl ⁽¹⁾
EECtrl ⁽¹⁾
Status ⁽²⁾
MotorSpeed1 ⁽²⁾
MotorSpeed2 ⁽²⁾
MotorPeriod1 ⁽²⁾
MotorPeriod2 ⁽²⁾
MotorKt1 ⁽²⁾
MotorKt2 ⁽²⁾
IPDPosition ⁽²⁾
SupplyVoltage ⁽²⁾
SpeedCmd ⁽²⁾
spdCmdBuffer ⁽²⁾
FaultCode ⁽²⁾
MotorParam1 ⁽³⁾
MotorParam2 ⁽³⁾
MotorParam3 ⁽³⁾
SysOpt1 ⁽³⁾
SysOpt2 ⁽³⁾
SysOpt3 ⁽³⁾
SysOpt4 ⁽³⁾
SysOpt5 ⁽³⁾
SysOpt6 ⁽³⁾
SysOpt7 ⁽³⁾
SysOpt8 ⁽³⁾
SysOpt9 ⁽³⁾
Address
0x00
0x01
0x02
0x03
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x19
0x1A
0x1B
0x1C
0x1E
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
D7
D6
D5
D4
D3
D2
D1
D0
SpdCtrl[7:0]
OverRide
SpdCtrl[8]
enProgKey[7:0]
sleepDis
SIdata eeRefresh eeWrite
OverTemp Slp_Stdby OverCurr
MtrLck
MotorSpeed[15:8]
MotorSpeed[7:0]
MotorPeriod[15:8]
MotorPeriod[7:0]
MotorKt[15:8]
MotorKt[7:0]
IPDPosition[7:0]
SupplyVoltage [7:0]
SpeedCmd [7:0]
spdCmdBuffer[7:0]
Lock5
Lock4
Fault3
Lock2
Lock1
Lock0
DoubleFreq
Rm[6:0]
AdjMode
Kt[6:0]
CtrlAdvMd
TCtrlAdv[6:0]
ISDThr[1:0]
IPDAdvcAgl[1:0]
ISDen
RvsDrEn
RvsDrThr[1:0]
OpenLCurr[1:0]
OpLCurrRt[2:0]
BrkDoneThr[2:0]
CtrlCoef[1:0]
StAccel2[2:0]
StAccel[2:0]
Op2ClsThr[4:0]
AlignTime[2:0]
LockEn[3:0]
AVSIndEn AVSMEn AVSMMd IPDRlsMd
SWiLimitThr[3:0]
HWiLimitThr[2:0]
LockEn5
ClsLpAccel[2:0]
Deadtime[3:0]
IPDCurrThr[3:0]
LockEn4 VregSel
IPDClk[1:0]
FGOLSet[1:0]
FGcycle[1:0]
KtLckThr[1:0]
SpdCtrlMd CLoopDis
(1) R/W
(2) Read only
(3) EEPROM
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