Datasheet

Device description L9942
12/40 Doc ID 11778 Rev 7
Figure 3. Stepping modes
080 8
081624
0808
Current Driver A
Current Driver B
STEP Signal
Phase Counter
Full-Stepping Mode: DIR=0
Address of Current
Profile Entry
0808
24 16 8 0
0808
Current Driver A
Current Driver B
STEP Signal
Full-Stepping Mode: DIR=1
Address of Current
Profile Entry
04840 484
0 4 812162024 28
04840484
Current Driver A
Current Driver B
STEP Signal
Address of Current
Profile Entry
Phase Counter
Half-Stepping Mode: DIR=0
048 404 84
0 2824 2016128 4
04840484
Driver Current A
Driver Current B
STEP Signal
Half-Stepping Mode: DIR=1
Address of Current
Profile Entry
0246864202468642
0 2 4 6 81012141618202224262830
0246864202468642
Current Driver A
Current Driver B
STEP Signal
Phase Counter
Mini-Stepping Mode: DIR=0
0246864202468642
0 3028262422 201816 14 1210 8 6 4 2
0246864202468642
Current Driver A
Current Driver B
STEP Signal
Mini-Stepping Mode: DIR=1
Adress of Current
Profile Entry
Adress of Current
Profile Entry
012 345678 765 432 101234 567 876 54321
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
0123 456 787654 321 012 345 67876543 21
Current Driver A
Current Driver B
Adress of Current
Profile Entry
Phase Counter
Micro Stepping Mode: DIR=0 (e.g auto decay)
0 12 345 678 765 432101 234 567 876543 21
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
0123 456 787 654321012 345 678 76 54321
Slow Decay
Mode
Mixed Decay
Mode
Current Driver A
Current Driver B
Micro Stepping Mode: DIR=1 (e.g. auto decay)
0
Adress of Current
Profile Entry
Mixed Decay
Mode
Mixed Decay
Mode
Mixed Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Mixed Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Slow Decay
Mode
Mixed Decay
Mode
Mixed Decay
Mode
Mixed Decay
Mode