AMIS-30621 Datasheet, PDF (47/59 Pages) AMI SEMICONDUCTOR – LIN Microstepping Motordriver

AMIS−30621
GetOTPparam
This command is provided to the circuit by the LIN master
after a preparing frame (see Preparing frames), 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.
1. The master sends a type #7 preparing frame. After the type#7 preparing frame, the master sends a reading frame
type#6 to retrieve the circuit’s in−frame response.
Table 41. GetOTPparam PREPARING FRAME TYPE #7
Byte
0
1
2
3
Content
Identifier
Data 1
Data 2
Checksum
Bit 7
*
1
1
Bit 6
*
Bit 5
0
Structure
Bit 4
Bit 3
Bit 2
ID4
ID3
ID2
CMD[6:0] = 0x02
AD[6:0]
Checksum over data
Bit 1
ID1
Bit 0
ID0
Table 42. GetOTPparam READING FRAME TYPE #6
Structure
Byte
Content
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
Identifier
0
1
1
1
1
1
0
1
1
Data 1
OSC3
OSC2
OSC1
OSC0
IREF3
IREF2
IREF1
IREF0
2
Data 2
1
TSD2
TSD1
TSD0
BG3
BG2
BG1
BG0
3
Data 3
ADM
(HW2)
(HW1)
(HW0)
PA3
(Note 40) (Note 40) (Note 40)
PA2
PA1
PA0
4
Data 4
Irun3
Irun2
Irun1
Irun0
Ihold3
Ihold2
Ihold1
Ihold0
(Note 41)
5
Data 5
Vmax3
Vmax2
Vmax1
Vmax0
Vmin3
Vmin2
Vmin1
Vmin0
6
Data 6
SecPos10 SecPos9 SecPos8
Shaft
Acc3
Acc2
Acc1
Acc0
7
Data 7
SecPos7 SecPos6 SecPos5 SecPos4 SecPos3
SecPos2 SecPos1 SecPos0
8
Data 8
StepMode1 StepMode0 LOCKBT LOCKBG
9
Checksum
Checksum over data
Where:
(*) According to parity computation
40. Although not stored in the OTP memory the physical status of the hardware address input pins are returned by a read of the OTP contents.
41. The Ihold0 bit is read as ‘1’ for product version AIMS30621C6217G and AMIS30621C6217RG.
2. The master sends a type #8 preparing frame. After the type#8 preparing frame, the master sends a reading frame
type#6 to retrieve the circuit’s in−frame response.
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