AMIS-30532 Datasheet, PDF (25/29 Pages) ON Semiconductor – Micro-Stepping Motor Driver

AMIS--30532
Table 14. SPI CONTROL PARAMETER OVERVIEW
Symbol
Description
Status
Value
<DIR> = 0
<DIRCTRL> = 0
CW motion (Note 15)
DIRCTRL
Controls the direction of rotation (in combination
with logic level on input DIR)
<DIR> = 1
<DIRCTRL> = 1
<DIRCTRL> = 0
CCW motion (Note 15)
CCW motion (Note 15)
<DIRCTRL> = 1
CW motion (Note 15)
NXTP
Selects if NXT triggers on rising or falling edge
<NXTP> = 0
<NXTP> = 1
Trigger on rising edge
Trigger on falling edge
00
Very Fast
EMC[1:0]
Turn On – Turn--off Slopes of motor driver
(Note 14)
01
10
Fast
Slow
11
Very Slow
SLAT
Speed load angle transparency bit
<SLAT> = 0
<SLAT> = 1
SLA is transparent
SLA is NOT transparent
SLAG
Speed load angle gain setting
<SLAG> = 0
<SLAG> = 1
Gain = 0.5
Gain = 0.25
PWMF
Enables doubling of the PWM frequency (Note 14)
<PWMF> = 0
<PWMF> = 1
Default Frequency
Double Frequency
PWMJ
Enables jittery 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.
SLP
Enables sleep mode
<SLP> = 0
<SLP> = 1
Active mode
Sleep mode
MOTEN
Activates the motor driver outputs
<MOTEN> = 0
<MOTEN> = 1
Drivers disabled
Drivers enabled
00
Default PWM control
M[1:0]
PWM Mode Control
01
DCMin Mode 1
10
DCMin Mode 2
11
DCMin Mode 3
00
4 PWM clock cycles
StrB[1:0]
PWM Strobe B Control: DON mask comparator
time (Note 16)
01
10
8 PWM clock cycles
12 PWM clock cycles
11
19 PWM clock cycles
StrC
PWM Strobe C Control: Switch time top/bottom
regulation
<StrC> = 0
<StrC> = 1
86% duty cycle PWM regulator
75% duty cycle PWM regulator
00
4 PWM clock cycles
StrE[1:0]
PWM Strobe E Control: Compensation bridge
active time (Note 16)
01
10
8 PWM clock cycles
12 PWM clock cycles
11
19 PWM clock cycles
14. The typical values can be found in Table 5: DC Parameters and in Table 6: AC parameters
15. Depending on the wiring of the motor connections
16. The duration is depending on the selected PWM frequency
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