AMIS-30621 Datasheet, PDF (23/43 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS-30621 LIN Microstepping Motordriver
Data Sheet
GetOTPparam
This command is provided to the circuit by the LIN Master
after a preparation frame (see § 9.2.4.6.3) 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.
Preparing Frame (type #7 or #8)
bit 7
bit 6
bit 5
*
*
0
1
1
In-frame Response (type #6)
0
1
1
ADM
HW2
HW1
*) according to parity computation
bit 4
ID4
bit 3
ID3
CMD[6:0] = 0x02
AD[6:0]
bit 2
ID2
1
1
1
OTP byte @0x00
OTP byte @0x01
HW0
PA3
PA2
OTP byte @0x03
OTP byte @0x04
OTP byte @0x05
OTP byte @0x06
OTP byte @0x07
bit 1
ID1
0
PA1
bit 0
ID0
Identifier
Data1
Data2
1
Identifier
Data1
Data2
PA0
Data3
Data4
Data5
Data6
Data7
Data8
HW[2:0] : Although not stored in the OTP memory, the
hardwired address is returned by GetOTPparam
as if stored at address 0x02 of the OTP memory.
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
§ 9.2.2.10 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).
bit 7
*
ESW
VddReset
bit 6
*
StepLoss
bit 5
0
ElDef
*) according to parity computation
bit 4
ID4
UV2
bit 3
ID3
TSD
ID[5:0] :
Dynamically allocated identifier. There should
be as many dedicated identifiers to the
GetStatus command as there are stepper
motors connected to the LIN bus.
bit 2
ID2
AD[6:0]
TW
bit 1
ID1
bit 0
ID0
Tinfo[1:0]
Identifier
Data1
Data2
AMI Semiconductor - Rev. 1.4
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