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User’s Manual U11302EJ4V0UM
CHAPTER 6 16-BIT TIMER/EVENT COUNTER
6.1 Outline of Timers Incorporated in
µ
PD780208 Subseries
This chapter explains the 16-bit timer/event counter. First of all, the timers incorporated in the
µ
PD780208
Subseries and other related parts are outlined below.
(1) 16-bit timer/event counter (TM0)
The TM0 can be used for an interval timer, PWM output, pulse width measurement (infrared remote control
receive function), external event counter or square-wave output of any frequency.
(2) 8-bit timer/event counters (TM1 and TM2)
TM1 and TM2 can be used for an interval timer and an external event counter and to output square waves
with any selected frequency. Two 8-bit timer/event counters can be used as one 16-bit timer/event counter
(refer to
CHAPTER 7 8-BIT TIMER/EVENT COUNTER
).
(3) Watch timer (TM3)
This timer can set a flag every 0.5 seconds and simultaneously generate interrupt requests at preset time intervals
(refer to
CHAPTER 8 WATCH TIMER
).
(4) Watchdog timer (WDTM)
WDTM can perform a watchdog timer function or generate non-maskable interrupt requests, maskable interrupt
requests and RESET at preset time intervals (refer to
CHAPTER 9 WATCHDOG TIMER
).
(5) Clock output controller
This circuit supplies other devices with the divided main system clock and the subsystem clock (refer to
CHAPTER
10 CLOCK OUTPUT CONTROLLER
).
(6) Buzzer output controller
This circuit outputs the buzzer frequency obtained by dividing the main system clock (refer to
CHAPTER 11
BUZZER OUTPUT CONTROLLER
).
