PULSE OUTPUT PORT MODE
9.4 Pulse output port mode operation
n : Reloaded value
FFFF16
➀1
Starts counting
Starts pulse outputting
n
000016
➀1
➀1
➀1
➀1
➀1
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
➀2
RTP0
0
output
Undefined
➀2
RTP0
1
2
output
output
Undefined
➀2
RTP0
Undefined
➀2
RTP0
3
output
output
output
Undefined
➀2
RTP1
0
1
Undefined
➀2
RTP1
Undefined
➀3
➀3
➀3
➀3
Timer A0 interrupt
request bit
➀1 : Written by software
➀2 : 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 9.3.2.
➀3 : 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. 9.4.3 Example of pulse output port mode operation (3)
7906 Group User’s Manual Rev.2.0
9-22
RENESAS [ RENESAS TECHNOLOGY CORP ]
