PULSE OUTPUT PORT MODE
9.5 Pulse output port mode operation
n : Reloaded value
FFFF16
✽1
Starts counting
Starts pulse outputting
n
000016
✽1
✽1
✽1
✽1
✽1
Contents of bits 5 to 0 of
three-phase output data register 0
001100
2
011000
2
110000
2
100001
2
PWM signal
by timer A1
PWM signal
by timer A2
PWM signal
by timer A4
Undefined ✽2
Undefined ✽2
Undefined ✽2
Undefined ✽2
Undefined ✽2
Undefined ✽2
RTP0
0
output
RTP0
1
2
output
output
RTP0
RTP0
3
output
output
output
RTP1
0
1
RTP1
✽3
✽3
✽3
✽3
Timer A0 interrupt
request bit
✽1 : Written by software
✽2 : When avoiding undefined output in these terms (in other words, when stabilizing
these output level), be sure to follow the procedure “Processing of avoiding undefined
output before starting pulse output” in Figure 9.4.2.
✽3 : Cleared to “0” by an interrupt request acceptance or cleared by software.
The above applies when the following conditions are satisfied:
• Pulse mode 1 selected
• Pulse width modulation applied (in a unit of 2 pins; timers A1, A2, and A4 are used.)
• Positive polarity
Fig. 9.5.3 Example of pulse output port mode operation (3)
7905 Group User’s Manual Rev.1.0
9-34
RENESAS [ RENESAS TECHNOLOGY CORP ]
