AMIS-30511 Datasheet, PDF (23/28 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS−30511
Table 14. SPI Control Parameter Overview SLAT
Symbol
Description
SLAT
Speed Load Angle Transparency bit
Table 15. SPI Control Parameter Overview SLAG
Symbol
Description
SLAG
Speed Load Angle Gain setting
Table 16. SPI Control Parameter Overview PWMF
Symbol
Description
PWMF
Enables doubling of the PWM frequency
Table 17. SPI Control Parameter Overview PWMJ
Symbol
Description
PWMJ
Enables jittery PWM
Table 18. SPI Control Parameter Overview SLP
Symbol
Description
SLP
Enables sleep mode
Table 19. SPI Control Parameter Overview MOTEN
Symbol
Description
MOTEN
Activates the motor driver outputs
Status
<SLAT> = 0
<SLAT> = 1
Behaviour
SLA is transparent
SLA is NOT transparent
Status
<SLAG> = 0
<SLAG> = 1
Gain = 0.5
Gain = 0.25
Value
Status
<PWMF> = 0
<PWMF> = 1
Value
f_PWM = 22.8 kHz
f_PWM = 45.6 kHz
Status
<PWMJ> = 0
<PWMJ> = 1
Behaviour
Jitter disabled
Jitter enabled
Status
<SLP> = 0
<SLP> = 1
Active mode
Sleep mode
Behaviour
Status
<MOTEN> = 0
<MOTEN> = 1
Value
Drivers disabled
Drivers enabled
Table 20. SPI Control Parameter Overview DIRCTRL
Symbol
Description
DIRCTRL
Controls the direction of rotation
(in combination with logic level on input DIR)
<DIR> = 0
<DIR> = 1
Status
<DIRCTRL> = 0
<DIRCTRL> = 1
<DIRCTRL> = 0
<DIRCTRL> = 1
Value
CW motion
CCW motion
CCW motion
CW motion
Table 21. SPI Control Parameter Overview NXTP
Symbol
Description
Status
Value
NXTP
Selects if NXT triggers on rising or falling edge
<NXTP> = 0
Trigger on rising edge
<NXTP> = 1
Trigger on falling edge
CUR[4:0]
Selects IMCmax peak. This is the peak or amplitude of the regulated current waveform in the motor coils.
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