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TOSHIBA
TMP90C840
3.7.3
4-phase 1-2 step excitation
Figs.
3.7
(8)
shows
the
output
waveforms
of
4-phase
1-2
step
excitation when Channel 0 is selected.
Trigger of TFF1--II
n n
n
n n
L
I
MOO (P60)
:bO
b4
Ib3
b7
b2
Ib6
bl
b5
I
I
Ib3
l£L
MOl (P6l)
Ibl
b5
bO
b4
b7
b2
I
M02 (P62)
/b2lb6
bl
b5
bO
b4
Ib3
b7
I
I
Ib6
M03 (P63)
Ib3
b7
b2
bl
b5
bO
b4
+
Initial Value
(Note) The Ibn' is initial value.
P6
+-
10001100
p6
+-
b7b6b5b4b3b2blbO.
(1)
Normal rotation
Trigger of TFFl
J
n n
I
n
n
n
L
I
MOO (P60)
IbO
b5
bl
b6
fb2
b7
b3
l£L
I
I
I
Ib2
MOl (P6l)
Ibl
b6
b7
b3
Ib4
bO
b5
I
I
M02 (P62)
i
b2
I
b7
b3
I
I
b4
bO
b5
bl
b6
M03 (P63)
twrb4
Ib2
bO
b5
bl
b6
b7
t
Initial Value P6
+-
10001100
~ Reverse rotation
Fig. 3.7 (8)
Output Waveforms of 4-phase 1-2 step Excitation
(Normal Rotation and Reverse Rotation)
MPU90-106
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