APPENDIX
Appendix 2. Control registers
Waveform output mode register (Address A616
)
ꢀ Three-phase waveform mode
b7 b6 b5 b4 b3 b2 b1 b0
Waveform output mode register (Address A616
)
X
1 0 0
Function
Reference
Bit
0
Bit name
At reset R/W
b2 b1 b0
10-6
0
0
0
0
RW
RW
RW
RW
Waveform output select bits
1 0 0 : Three-phase waveform mode
(Note 1)
1
2
3
0 : “H” output
1 : “L” output
Three-phase output polarity set buffer
(Valid in three-phase mode 1) (Note 2)
0
RW
0 : Three-phase mode 0
1 : Three-phase mode 1
4
Three-phase mode select bit
0
0
RW
RW
5
6
Invalid in the three-phase waveform mode.
0: Both falling and rising edges of one-shot
Dead-time timer trigger select bit
(Note 3)
pulse for timers A0 to A2
1: Only the falling edge of one-shot pulse for
timers A0 to A2
0
RW
0 : Waveform output disabled
1 : Waveform output enabled
7
Waveform output control bit
X: It may be either “0” or “1.”
Notes 1: When not using the pulse output mode and three-phase waveform mode, be sure to fix these bits to “000
2
.”
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.
ꢀ Pulse output mode
b7 b6 b5 b4 b3 b2 b1 b0
Waveform output mode register (Address A616
)
Bit
0
Bit name
Function
At reset R/W
Reference
9-4
9-5
Waveform output select bits
See Table 9.2.1.
0
0
0
RW
RW
RW
(Note)
1
2
0 : Pulse mode 0
1 : Pulse mode 1
0
RW
Pulse output mode select bit
3
Pulse width modulation timer
select bit
0
0
0
RW
RW
RW
4
5
6
See Table 9.2.2.
When pulse mode 0 is selected,
Waveform output control bit 0
0: RTP1
1: RTP1
0
, RTP1
1
: pulse outputs are disabled.
: pulse outputs are enabled.
0, RTP1
1
When pulse mode 1 is selected,
fix this bit to “0.”
Waveform output control bit 1
When pulse mode 0 is selected,
0
RW
7
0 : RTP0
0
to RTP0
to RTP0
3
: pulse outputs are disabled.
: pulse outputs are enabled.
1 : RTP0
0
3
When pulse mode 1 is selected,
0 : RTP0
0
to RTP0
3
RTP10, RTP1
1
: pulse outputs
: pulse outputs
are disabled.
1 : RTP0
0
to RTP0
3
RTP10, RTP1
1
are enabled.
Note: When not using the pulse output port mode and three-phase waveform mode, be sure to fix these bits to “000 .”
2
7906 Group User’s Manual Rev.2.0
20-37
RENESAS [ RENESAS TECHNOLOGY CORP ]
