m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 252
m37905
Manufacturer Part Number
m37905
Description
Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37905.pdf
(565 pages)
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Fig. 10.5.1 Triangular wave modulation output example using U/V/W-phase output fix bit (three-phase mode 1)
Contents of timer A0/A1/A2
register
Contents of timer A0
register
U/V/W-phase output fix bit
U/V/W-phase fixed output’s
polarity set bit
One-shot pulse output of
timer A0/A1/A2
Contents of output polarity
set toggle flip-flop
Positive waveform output
Negative waveform output
Timer A3 interrupt request
Reversed signal of pulse
output of dead-time timer
Carrier wave
Timer A3 underflow signal
Contents of three-phase
output polarity set buffer
1
/A1
1
/A2
2
2
2
2
1
This applies under the following conditions:
• Timer A3 interrupt request: every second time
• Timer A3 interrupt validity output: every even-numbered underflow in time A3
f
i
: Count source of timer A0/A1/A2
1 : Written by software
2 : This is an internal signal, which cannot be read from the external.
Trans-
ferred
n
n
1
2
7905 Group User’s Manual Rev.1.0
Rever-
sed
1/f
THREE-PHASE WAVEFORM MODE
i
n
1
1
1
1
1
Rever-
sed
1/f
Transferred
n
Rever-
sed
i
2
n
n
10.5 Three-phase waveform output fixation
3
4
Rever-
sed
1/f
Rever-
sed
Trans-
ferred
i
1
1
n
3
Rever-
sed
1/f
Transferred
Rever-
sed
n
i
n
n
4
5
6
Rever-
sed
1/f
Rever-
sed
Trans-
ferred
i
n
5
1
1
1
Rever-
sed
1/f
Transferred
i
n
Rever-
sed
n
n
6
7
8
Rever-
sed
Rever-
sed
1/f
Trans-
ferred
n
i
1
1
7
n
n
10
Rever-
sed
9
10-35
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