HD404374 Datasheet, PDF (69/161 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip A/D Converter

HD404374/HD404384/HD404389/HD404082/HD404084 Series
Timers
The MCU incorporates three timers, A to C.
• Timer A: Free-running timer
• Timer B: Multifunctional timer
• Timer C: Multifunctional timer
Timer A is an 8-bit free-running timer. Timers B and C are 8-bit multifunctional timers; Each one of their
have the functions shown in table 25 and their operating mode can be set by the program.
Table 25 Timer Functions
Functios
Clock source
Prescaler S
Prescaler W*
External event
Timer functions
Free-running
Time-base*
Event counter
Reload
Watchdog
Timer outputs
Toggle
PWM
Note: — implies not available
* Applies to HD404374 Series
Timer A
Available
Available
—
Available
Available
—
—
—
—
—
Timer B
Available
—
Available
Available
—
Available
Available
—
Available
Available
Timer C
Available
—
—
Available
—
—
Available
Available
Available
Available
Timer A
Timer A Functions
Timer A has the following functions.
• Free-running timer
• Realtime clock time base
The block diagram of timer A is shown in figure 32.
Rev.5.00, Sep.11.2003, page 69 of 161