Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 7 16-BIT TIMER/EVENT COUNTER AA (TAA)
R01UH0042EJ0500 Rev.5.00 Page 320 of 1513
Aug 12, 2011
7.7 Simultaneous-Start Function
Timer AA and timer AB have a timer-tuned operation function.
By using the simultaneous-start function, a timer operation in which the operation start timing and count up timing of the
master timer and slave timer are synchronized can be performed.
Only the PWM output mode can be used in the simultaneous-start function.
The combinations of timers that can use the simultaneous-start function are listed in Table 7-10.
Table 7-10. Timer Simultaneous-Start Function
Master Timer Slave Timer
TAA1 TAA0
TAA3 TAA2
TAB0 TAA5
Figure 7-48 shows an example where individual operation and simultaneous-start operation of TAA0 (as the master
timer) and TAA1 (as the slave timer) are performed in PWM output mode.
Figure 7-48. Differences Between Individual Operation and Simultaneous-Start Operation Using TAA1 and TAA0
TAA1
TOAA11 (PWM output)
16-bit timer/counter
Individual operation
If PWM operates separately with each timer,
the 16-bit counter starts and the PWM output
starts at a different timing for each timer.
16-bit capture/compare
16-bit capture/compare
TOAA10 (square
waveform output)
16-bit timer/counter
16-bit capture/compare
16-bit capture/compare
TAA0
TOAA01 (PWM output)
TOAA00 (square
waveform output)
TAA1 (master)
TOAA11 (PWM output)
16-bit timer/counter
16-bit capture/compare
16-bit capture/compare
TOAA10 (square
waveform output)
16-bit timer/counter
16-bit capture/compare
16-bit capture/compare
TAA0 (slave)
TOAA01 (PWM output)
Simultaneous-start signal
TOAA00 (square
waveform output)
Simultaneous-start operation
With the simultaneous-start function, PWM
output operates with the count start timing and
the count clock of both timers being synchronized.