Program Example For Timer Function Of Pulse Width Count Timer - Fujitsu Semiconductor Controller MB89950/950A Hardware Manual

8.10 Program Example for Timer Function of Pulse Width Count
Timer
This section gives two program examples for the timer function of the pulse width
count timer.
I Program example 1 for interval timer function (reload timer mode)
G
Processing description
• Generates repeated interval timer interrupts at 3 ms intervals (reload timer mode).
• The TO bit will be inverted after each interval time cycle. The initial value of TO bit is "0" level.
• The following shows the RLBR register value that results in an interval time of approximately 3 ms for
a 5 MHz main clock oscillation frequency. The count clock is 32 t
RLBR register value = 3 ms/(32 x 4/5 MHz) = 117.2 (075
CHAPTER 8 PULSE WIDTH COUNT TIMER (PWC)
(t
inst inst
)
H
: Instruction cycle).
165