AMIS-30623 Datasheet, PDF (54/67 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS-30623 LIN Microstepping Motordriver
Data Sheet
GetOTPparam
This command is provided to the circuit by the LIN master after a preparation frame (see Preparing frames) was issued, to read the
content of an OTP memory segment which address was specified in the preparation frame.
GetOTPparam corresponds to a LIN in-frame response with 0x3D indirect ID.
Byte
0
1
2
Content
Identifier
Data 1
Data 2
Bit 7
*
1
1
Preparing Frame
Structure
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2
*
0
ID4 ID3 ID2
CMD[6:0] = 0x02
AD[6:0]
Bit 1
ID1
Bit 0
ID0
Byte
0
1
2
3
4
5
6
7
8
Where:
(*)
Content
Identifier
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
Bit 7
0
Reading Frame
Structure
Bit 6 Bit 5 Bit 4 Bit 3 Bit 2
1
1
1
1
1
OTP byte @0x00
OTP byte @0x01
OTP byte @0x02
OTP byte @0x03
OTP byte @0x04
OTP byte @0x05
OTP byte @0x06
OTP byte @0x07
Bit 1
0
Bit 0
1
According to parity computation
GetStatus
This command is provided to the circuit by the LIN master to get a quick status (compared to that of GetFullStatus command) of the
circuit and of the stepper-motor. Refer to Flags Table to see the meaning of the parameters sent to the LIN master.
Note: A GetStatus command will attempt to reset flags <TW>, <TSD>, <UV2>, <ElDef>, <StepLoss> and <VddReset>.
GetStatus corresponds to a 2 data bytes LIN in-frame response with a direct ID (type #5).
Byte
0
1
2
Where:
(*)
ID[5:0]:
Content
Identifier
Data 1
Data 2
GetStatus Reading Frame
Structure
Bit 7
Bit 6 Bit 5 Bit 4 Bit 3
*
*
0
ID4 ID3
ESW
AD[6:0]
VddReset StepLoss ElDef UV2 TSD
Bit 2
ID2
TW
Bit 1 Bit 0
ID1 ID0
Tinfo[1:0]
According to parity computation
Dynamically allocated direct identifier. There should be as many dedicated identifiers to this
GetStatus command as there are stepper-motors connected to the LIN bus.
AMI Semiconductor – June 2006, Rev 3.0
54
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