AMIS-30624 Datasheet, PDF (46/56 Pages) AMI SEMICONDUCTOR – I2C Microstepping Motordriver

AMIS-30624 I²C Microstepping Motordriver
Data Sheet
17.3 Application Commands
GetFullStatus1
This command is provided to the circuit by the master to get a complete status of the circuit and of the steppermotor. Refer to Table 18
and Table 19 to see the meaning of the parameters sent back to the I²C master.
Note: A GetFullStatus1 command will attempt to reset flags <TW>, <TSD>, <UV2>, <ElDef>, <StepLoss>, <CPFail>, <OVC1>,
<OVC2>, and <VddReset>.
GetFullStatus1 corresponds to the following I²C command frame:
Byte Content
0
Address
1
Command
Bit 7
1
1
GetFullStatus1 Command Frame
Structure
Bit 6
Bit 5
Bit 4 Bit 3
1
OTP3
OTP2 OTP1
0
0
0
0
Bit 2
OTP0
0
Bit 1
HW
0
Bit 0
0
1
GetFullStatus1 Response Frame
Byte Content
Structure
Bit 7
Bit 6
Bit 5
Bit 4 Bit 3
0
Address
1
1
OTP3
OTP2 OTP1
1
Address
1
1
1
OTP3 OTP2
2
Data 1
Irun[3:0]
3
Data 2
Vmax[3:0]
4
Data 3 AccShape StepMode[1:0] Shaft
5
Data 4
VddReset StepLoss
ElDef
UV2
TSD
6
Data 5
Motion[2:0]
ESW OVC1
7
Data 6
1
1
1
1
1
8
Data 7
AbsThr[3:0]
Where:
OTP(n)
HW
OTP address bits PA[3:0]
Hardwired address bit
Irun[3:0]
Ihold[3:0]
Vmax[3:0]
Vmin[3:0]
Operating current in the motor coil
Standstill current in the motor coil
Maximum velocity
Minimum velocity
AccShape
Enables motion without acceleration
StepMode[1:0] Step mode definition
Shaft
Direction of movement
Acc[3:0]
Acceleration form minimum to maximum velocity
VddReset
StepLoss
ElDef
UV2
Reset of digital supply
Step loss occurred
Electrical defect
Battery under voltage detected
TSD
TW
Tinfo[1:0]
Motion[2:0]
Thermal shutdown
Thermal warning
Temperature Info
Motion status
ESW
OVC1
OVC2
Stall
External switch status
Over current in X-coil detected
Over current in Y-coil detected
Stall detected
CPFail
AbsThr[3:0]
DelThr[3:0]
Charge pump failure
Stall detection absolute threshold
Stall detection delta threshold
Bit 2
Bit 1
Bit 0
OTP0
HW
1
OTP1 OTP0
HW
Ihold[3:0]
Vmin[3:0]
Acc[3:0]
TW
Tinfo[1:0]
OVC2 Stall CPFail
1
1
1
DelThr[3:0]
AMI Semiconductor – Apr. 2007, Rev 3.1, M-20664-003
46
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