
7905 Group User’s Manual Rev.1.0
20-45
APPENDIX
Appendix 2. Control registers
Three-phase output data register 1 (Address A916)
s Three-phase waveform mode
s Pulse output port mode (Pulse output port 0)
Reference
10-11
Three-phase output data register 1 (Address A916)
b7 b6 b5 b4 b3 b2 b1 b0
X X
0 : “H” output
1 : “L” output
0 : An interrupt request occurs at each even-number-
ed underflow of timer A3
1 : An interrupt request occurs at each odd-number-
ed underflow of timer A3
W-phase fixed output’s polarity
set bit
(Note 1)
V-phase fixed output’s polarity
set bit
(Note 2)
U-phase fixed output’s polarity
set bit
(Note 3)
V-phase output polarity set buffer
(in three-phase mode 0)
Interrupt request interval set bit
(in three-phase mode 1)
U-phase output polarity set buffer
(in three-phase mode 0)
Interrupt validity output select bit
(in three-phase mode 1)
0 : “H” output
1 : “L” output
0 : Every second time
1 : Every forth time
Bit name
Bit
0
1
2
3
4
5
7, 6
Function
At reset
R/W
0 : “H” output fixed
1 : “L” output fixed
0 : “H” output fixed
1 : “L” output fixed
0 : “H” output fixed
1 : “L” output fixed
0
RW
X: It may be either “0” or “1.”
Notes 1: Valid when the W-phase output fix bit (bit 0 at address A816) = “1.” Be sure not to change the value during output of a
fixed value.
2: Valid when the V-phase output fix bit (bit 1 at address A816) = “1.” Be sure not to change the value during output of a
fixed value.
3: Valid when the U-phase output fix bit (bit 2 at address A816) = “1.” Be sure not to change the value during output of a
fixed value.
X
Invalid in the three-phase waveform mode.
Three-phase output data register 1 (Address A916)
Pulse width modulation enable
bit 0
Pulse width modulation enable
bit 1
Pulse width modulation enable
bit 2
Pulse output polarity select bit
RTP10 pulse output data bit
(Valid in pulse mode 0) (Note)
RTP11 pulse output data bit
(Valid in pulse mode 0) (Note)
0
1
2
3
4
5
6
7
RW
0
Bit name
Bit
Function
At reset
R/W
0 : Positive
1 : Negative
0 : No pulse width modulation by timer A1
1 : Pulse width modulation by timer A1
b7 b6 b5 b4 b3 b2 b1 b0
0 : No pulse width modulation by timer A2
1 : Pulse width modulation by timer A2
0 : No pulse width modulation by timer A4
1 : Pulse width modulation by timer A4
0 : “L” level output
1 : “H” level output
Note: This bit is invalid in pulse mode 1.
Reference
9-9
RTP12 pulse output data bit
RTP13 pulse output data bit