AMIS-30511 Datasheet, PDF (24/28 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30511
Table 22. SPI Control Parameter Overview CUR[4:0]
Index
CUR[4:0]
Current (mA)
Index
CUR[4:0]
0
00000
15
10
10000
1
00001
30
11
10001
2
00010
45
12
10010
3
00011
50
13
10011
4
00100
55
14
10100
5
00101
61
15
10101
6
00110
67
16
10110
7
00111
74
17
10111
8
01000
82
18
11000
9
01001
91
19
11001
A
01010
100
1A
11010
B
01011
110
1B
11011
C
01100
122
1C
11100
D
01101
135
1D
11101
E
01110
149
1E
11110
F
01111
164
1F
11111
EMC[1:0]
Adjusts the dV/dt of the PWM voltage slopes on the motor pins.
Current (mA)
181
200
221
244
269
297
328
362
400
441
487
538
594
656
724
800
Table 23. SPI Control Parameter Overview EMC[1:0]
Index
EMC[1:0]
Slope (V/ms)
0
0
0
150
1
0
1
100
2
1
0
50
3
1
1
25
SM[2:0]
Selects the micro−stepping mode.
Remark
Turn−on and turn−off voltage slope 10% to 90%
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Table 24. SPI Control Parameter Overview SM[2:0]
Index
SM[2:0]
Step Mode
0
000
1/32
1
001
1/16
2
010
1/8
3
011
1/4
4
100
1/2
5
101
1/2
6
110
Full
7
111
N/A
Remark
Micro−step
Micro−step
Micro−step
Micro−step
Uncompensated half−step
Compensated half−step
Full step
For future use
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