HD404339FS datasheet(39/80 Pages) RENESAS

39 / 80 page

HD404339 Series

Timers

The MCU has three built-in timers A, B, and C. The functions of each timer are listed in table 7.

Timer A

Timer A is an 8-bit free-running timer that can also be used as a clock time-base with a 32.768-kHz

subsystem oscillator. Timer A has the following features:

• One of eight internal clocks can be selected from prescaler S according to the setting of timer mode

• In time-base mode, one of five internal clocks can be selected from prescaler W according to the setting

of timer mode register A

• An interrupt request can be generated when timer counter A (TCA) overflows

• Input clock frequency must not be modified during timer A operation

Table 7

Timer Functions

Functions

Timer A

Timer B

Timer C

Clock source

Prescaler S

Available

Prescaler W

Available

—

External event

—

Available

—

Timer functions

Free-running

Available

Time base

Available

—

Event counter

—

Available

—

Reload

—

Available

Watchdog

—

Available

Input capture

—

Available

—

Timer output

PWM

—

Available

HD404339FS Datasheet(PDF) 39 Page - Renesas Technology Corp

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