EVAL6470H Datasheet, PDF (50/70 Pages) STMicroelectronics – dSPIN fully integrated microstepping motor driver with motion engine and SPI

Programming manual
L6470
Table 23. Oscillator management (continued)
EXT_C
LK
OSC_SEL[2..0]
Clock source
0
1
0
0
External crystal or resonator: 8
MHz
0
1
0
1
External crystal or resonator:
16 MHz
0
1
1
0
External crystal or resonator:
24 MHz
0
1
1
1
External crystal or resonator:
32 MHz
Ext clock source: 8 MHz
1
1
0
0
(Crystal/resonator driver
disabled)
Ext clock source: 16 MHz
1
1
0
1
(Crystal/resonator driver
disabled)
Ext clock source: 24 MHz
1
1
1
0
(Crystal/resonator driver
disabled)
Ext clock source: 32 MHz
1
1
1
1
(Crystal/resonator driver
disabled)
OSCIN
Crystal/resonator
driving
Crystal/resonator
driving
Crystal/resonator
driving
Crystal/resonator
driving
Clock source
Clock source
Clock source
Clock source
OSCOUT
Crystal/resonator
driving
Crystal/resonator
driving
Crystal/resonator
driving
Crystal/resonator
driving
Supplies inverted
OSCIN signal
Supplies inverted
OSCIN signal
Supplies inverted
OSCIN signal
Supplies inverted
OSCIN signal
The SW_MODE bit sets the external switch to act as HardStop interrupt or not:
Table 24.
External switch hard stop interrupt mode
SW_MODE
Switch mode
0
HardStop interrupt
1
User disposal
The OC_SD bit sets whether an overcurrent event causes or not the bridges to turn off; the
OCD flag in the STATUS register is forced low anyway:
Table 25.
Overcurrent event
OC_SD
1
0
Overcurrent event
Bridges shut down
Bridges do not shut down
The POW_SR bits set the slew rate value of power bridge output:
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