m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 473
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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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APPENDIX
Appendix 2. Control registers
20-42
X: It may be either “0” or “1.”
Notes 1: When not using pulse output port 0 and three-phase waveform mode, be sure to fix these bits to “000
Note: When not using pulse output port 0 and three-phase waveform mode, be sure to fix these bits to “000
Waveform output mode register (Address A6
Waveform output mode register (Address A6
Waveform output mode register (Address A6
Three-phase waveform mode
Bit
Pulse output mode (Pulse output port 0)
Bit
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
2: This bit is invalid in three-phase mode 0.
3: When the saw-tooth-wave modulation output is performed, be sure to fix this bit to “0.”
4: Writing to any of bits 0 to 6 must be performed while counting for timers A0 to A3 halts.
Waveform output select bits
Pulse output mode select bit
Pulse width modulation timer
select bits
Waveform output control bit 0
Waveform output control bit 1
Waveform output select bits
Three-phase output polarity set buffer
(Valid in three-phase mode 1) (Note 2)
Three-phase mode select bit
Dead-time timer trigger select bit
Waveform output control bit
Invalid in the three-phase waveform mode.
Bit name
Bit name
(Note)
(Note 1)
(Note 3)
When pulse mode 0 is selected,
When pulse mode 1 is selected,
7905 Group User’s Manual Rev.1.0
0 : Pulse mode 0
1 : Pulse mode 1
When pulse mode 0 is selected,
When pulse mode 1 is selected,
See Table 9.2.1.
See Table 9.2.2.
0 : RTP0
1 : RTP0
0 : RTP0
1 : RTP0
0: RTP1
1: RTP1
0: RTP1
1: RTP1
are disabled.
are enabled.
b2
1 0 0 : Three-phase waveform mode
0 : “H” output
1 : “L” output
0 : Three-phase mode 0
1 : Three-phase mode 1
0: Both falling and rising edges of one-shot
1: Only the falling edge of one-shot pulse for
0 : Waveform output disabled
1 : Waveform output enabled
16
16
b1
)
)
pulse for timers A0 to A2
timers A0 to A2
b0
0
0
2
2
0
0
0
0
, RTP1
, RTP1
to RTP1
to RTP1
to RTP0
to RTP0
to RTP0
to RTP0
16
)
3
3
: pulse outputs are disabled.
: pulse outputs are enabled.
3
3
3
3
3
3
: pulse outputs are disabled.
: pulse outputs are enabled.
: pulse outputs are disabled.
: pulse outputs are enabled.
, RTP1
, RTP1
Function
Function
0
0
, RTP1
, RTP1
1
1
: pulse outputs
: pulse outputs
b7 b6 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
X
2
.”
At reset
At reset
2
.”
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
R/W
R/W
0
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
0
Reference
Reference
10-6
9-6
9-7
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