HD404849FS datasheet(58/127 Pages) RENESAS

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HD404849 Series

Timers

The MCU has four timer/counters (A to D).

• Timer A: Free-running timer

• Timer B: Multifunction timer

• Timer C: Multifunction timer

• Timer D: Multifunction timer

Timer A is an 8-bit free-running timer. Timers B–D are 8-bit multifunction timers, whose functions are

listed in table 26. The operating modes are selected by software.

Table 26 Timer Functions

Functions

Timer A

Timer B

Timer C

Timer D

Clock source

Prescaler S

Available

Prescaler W

Available

—

External event

—

Available

—

Available

Timer functions

Free-running

Available

Time-base

Available

—

Event counter

—

Available

—

Available

Reload

—

Available

Watchdog

—

Available

—

Input capture

—

Available

Timer outputs

Toggle

—

Available

0 output

—

Available

1 output

—

Available

PWM

—

Available

Note:

— implies not available.

Timer A

Timer A Functions: Timer A has the following functions.

• Free-running timer

• Clock time-base

The block diagram of timer A is shown in figure 40.

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