AMIS-30521_10 Datasheet, PDF (23/28 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30521, NCV70521
Table 12. SPI CONTROL PARAMETER OVERVIEW
Symbol
Description
Status
Value
DIRCTRL
Controls the Direction of Rotation (in
Combination with Logic Level on Input DIR)
<DIR> = 0
<DIR> = 1
<DIRCTRL> = 0
<DIRCTRL> = 1
<DIRCTRL> = 0
<DIRCTRL> = 1
CW Motion
CCW Motion
CCW Motion
CW Motion
00
Very Fast
EMC[1:0]
Turn On− and Turn−off Slopes (Note 15)
01
Fast
10
Slow
11
Very Slow
MOTEN
Activates the Motor Driver Outputs
<MOTEN> = 0
<MOTEN> = 1
Drivers Disabled
Drivers Enabled
NXTP
Selects if NXT triggers on Rising or Falling
Edge
<NXTP> = 0
<NXTP> = 1
Trigger on Rising Edge
Trigger on Falling Edge
PWMF
Enables Doubling of the PWM Frequency
(Note 15)
<PWMF> = 0
<PWMF> = 1
Default Frequency
Double Frequency
PWMJ
Enables Jitter PWM
<PWMJ> = 0
<PWMJ> = 1
Jitter Disabled
Jitter Enabled
000
1/32 Micro Step
001
1/16 Micro Step
010
1/8
Micro Step
SM[2:0]
Stepmode
011
1/4 Micro Step
100
Compensated Half Step
101
Uncompensated half Step
110
Full Step
111
n.a.
SLAG
Speed Load Angle Gain Setting
<SLAG> = 0
<SLAG> = 1
Gain = 0.5
Gain = 0.25
SLAT
Speed Load Angle Transparency Bit
<SLAT> = 0
<SLAT> = 1
SLA is NOT Transparent
SLA is Transparent
SLP
Enables Sleep Mode
<SLP> = 0
<SLP> = 1
Active Mode
Sleep Mode
15. The typical values can be found in Table 5: DC Parameters and Table 6: AC Parameters
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