THREE-PHASE WAVEFORM MODE
10.2 Block description
10.2.3 Three-phase output data register 0
Figure 10.2.6 shows the structure of the three-phase output data register 0 (the three-phase waveform
mode).
For bits 7 and 6, refer to section “10.2.2 Dead-time timer.”
b7 b6 b5 b4 b3 b2 b1 b0
Three-phase output data register 0 (Address A816
)
X
X
Bit
0
Bit name
Function
At reset R/W
W-phase output fix bit
0 : Released from output fixation
1 : Output fixed
0
RW
0 : Released from output fixation
1 : Output fixed
V-phase output fix bit
U-phase output fix bit
1
2
3
0
0
0
RW
RW
RW
0 : Released from output fixation
1 : Output fixed
W-phase output polarity set buffer
(Valid in three-phase mode 0.)
(Note)
0 : “H” output
1 : “L” output
0
0
RW
RW
Invalid in the three-phase waveform mode.
5, 4
6
b7 b6
Clock-source-of-dead-time-timer
0 0 : f
0 1 : f
1 0 : f
2
2
2
/2
/4
select bits
7
0
RW
1 1 : Do not select.
X: It may be either “0” or “1.”
Note: This bit is invalid in three-phase mode 1.
Fig. 10.2.6 Structure of three-phase output data register 0 (three-phase waveform mode)
(1) W-phase output fix bit (bit 0)
Setting of this bit to “1” fixes the output level at the W-phase waveform output pin to the level which
is selected by the W-phase fixed output’s polarity set bit (bit 0 at address A916); vice versa, the output
level at the W-phase waveform output pin is reversed.
(2) V-phase output fix bit (bit 1)
Setting of this bit to “1” fixes the output level at the V-phase waveform output pin to the level which
is selected by the V-phase fixed output’s polarity set bit (bit 1 at address A916); vice versa, the output
level at the V-phase waveform output pin is reversed.
(3) U-phase output fix bit (bit 2)
Setting of this bit to “1” fixes the output level at the U-phase waveform output pin to the level which
is selected by the U-phase fixed output’s polarity set bit (bit 2 at address A916); vice versa, the output
level at the U-phase waveform output pin is reversed.
(4) W-phase output polarity set buffer (bit 3)
This bit serves as the buffer to set the W-phase output polarity and is used in three-phase mode 0.
(Refer to section “10.2.9 Output polarity set toggle flip-flop.”)
7906 Group User’s Manual Rev.2.0
10-9
RENESAS [ RENESAS TECHNOLOGY CORP ]
