4-Phase 1-Step/Z-Step Excitation - Toshiba TLCS-90 Series Data Book

TOSHIBA TMP90C840
3.7.2 4-phase I-step/2-step excitation
Figs. 3.7 (5) and (6) show the output waveforms of 4-phase I-step
excitation and 2-step excitation when Channel 0 is selected.
Sets circle by using TIMER-O or TIMER-l
Trigger of·TFFl ~
I
"---~
n
n
n
n
n
I
MOO (P60) IbO b3
,
Ib2
Ibl
bO
,
b3
MOl (P61) lbl bO
~i ----------------~
Ib2
I
bl
I
bO
b3
M02(P62)
~bl
,
~----------------~
I
b2
,
M03 (P63)
~02
Ibl
bO b3
t
Initial Value
P6
+
xxxx0100
(Note) "bn" is Internal Value
p6
+
xxxxb3b2blbO .
(2)
Normal rotation
Trigger of TFFl
~
n
n n
n
n
,
MOO (P60) IbO
bl
I
Ib2
Ib3
bO
I
Ib3 MOl (P6l)
l£L.Jb2
bO bl
,
M02(P62)
ib2lb3
,
bO
bl
Ib2
I
M03 (P63)
'b3
I
bO
bl
I
b2
I
b3
t
Initial Value p6
+
xxxx0100
@
Reverse rotation
L-
L
r-
L-
L
I
Fig. 3.7 (5) Output Waveforms of 4-phase I-step Excitation
(Normal Rotation and Reverse Rotation)
MPU90-104