L6470HTR STMicroelectronics, L6470HTR Datasheet - Page 44

• Manufacturer Part Number: L6470HTR
• Description: IC STEPPER/DC MOTOR DVR 28HTSSOP
• Manufacturer: STMicroelectronics

Specifications of L6470HTR

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-10812-2

Programming manual
44/64
Table 17.
Every time the step mode is changed the electrical position (i.e. the point of microstepping
sinewave that is generated) is reset to the first microstep.
Any attempt to write the register when the motor is running causes the command to be
ignored and the NOTPERF_CMD flag to rise (see paragraph
When when SYNC_EN bit is set low BUSY/SYNC output is forced low during commands
execution, otherwise, when SYNC_EN bit is set high, BUSY/SYNC output provides a clock
signal according to SYNC_SEL parameter.
Table 18.
Warning:
0
0
0
0
1
1
1
1
000
001
010
011
100
101
110
111
Step mode selection
SYNC output frequency
STEP_SEL[2..0]
f
FS
000
NA
NA
NA
NA
NA
NA
NA
/2
Every time STEP_SEL is changed the value in ABS_POS
register looses meaning and should be reset.
0
0
1
1
0
0
1
1
f
FS
001
NA
NA
NA
NA
NA
NA
f
FS
/2
Doc ID 16737 Rev 2
f
2· f
FS
010
NA
NA
NA
NA
NA
f
FS
0
1
0
1
0
1
0
1
FS
/2
(f
FS
is the full step frequency)
f
2· f
4· f
FS
011
NA
NA
NA
NA
Full step
Half step
1/4 microstep
1/8 microstep
1/16 microstep
1/32 microstep
1/64 microstep
1/128 microstep
f
FS
FS
FS
/2
STEP_SEL
f
2· f
4· f
8· f
FS
100
NA
NA
NA
f
FS
FS
FS
FS
/2
9.1.22
16· f
Step mode
f
2· f
4· f
8· f
FS
101
NA
NA
f
FS
FS
FS
FS
/2
FS
).
16· f
32· f
f
2· f
4· f
8· f
FS
110
f
NA
FS
FS
FS
FS
/2
FS
FS
16· f
32· f
64· f
f
2· f
4· f
8· f
FS
111
f
L6470
FS
FS
FS
FS
/2
FS
FS
FS