LC866428B 查看數據表（PDF） - SANYO -> Panasonic

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LC866428B

8-Bit Single Chip Microcontroller

SANYO -> Panasonic 

LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B

(8) Timer

- Timer 0

16-bit timer/counter

2-bit prescaler + 8-bit programmable prescaler

Mode 0 : Two 8-bit timers with programmable prescaler

Mode 1 : 8-bit timer with programmable prescaler + 8-bit counter

Mode 2 : 16-bit timer with programmable prescaler

Mode 3 : 16-bit counter

The resolution of Timer is tCYC. (tCYC: cycle time)

- Timer 1

16-bit timer/PWM

Mode 0 : Two 8-bit timers

Mode 1 : 8-bit timer + 8-bit PWM

Mode 2 : 16-bit timer

Mode 3 : Variable-bit PWM (9-16 bits)

In Mode 0 and Mode 1,the resolution of Timer and PWM is tCYC.

In Mode 2 and Mode 3,the resolution of Timer and PWM selectable: tCYC or 1/2 tCYC by program

- Base timer

Every 500ms overflow system for a clock application (using 32.768kHz crystal oscillation for Base timer clock)

Every 976µs, 3.9ms, 15.6ms, 62.5ms overflow system (using 32.768kHz crystal oscillation for Base timer clock)

The Base timer clock selectable; 32.768kHz crystal oscillation, System clock, and programmable prescaler output of

Timer 0

(9) Buzzer output

- The Buzzer sound frequency selectable; 4KHz, 2KHz (using 32.768kHz crystal oscillation for Base

timer clock)

(10) Remote-control receiver circuit (Shares with the P73/INT3/T0IN terminal)

- Noise Rejection function (the time constant of noize rejection filter: 1tCYC/16tCYC/64tCYC)

(tCYC: instruction cycle time)

- Switch Polarity function

(11) Watchdog timer

- The watchdog timer is taken on RC outside

- Watchdog timer operation selectable: interrupt system, system reset

(12) Interrupt system

- 14-source 10-vectored interrupts :

1. External interrupt INT0 (include watchdog timer)

2. External interrupt INT1

3. External interrupt INT2, Timer/counter T0L (Lower 8-bit)

4. External interrupt INT3, Base timer

5. Timer/counter T0H (Upper 8-bit)

6. Timer T1L, Timer T1H

7. Serial-interface SIO0

8. Serial-interface SIO1

9. AD converter

10. VFD automatic display controller, Port 0

- Built-in Interrupt Priority control register

Microcontroller allows 3 levels of interrupt; low level, high level, and highest level of multiplex interrupt. It can

specify a low level or a high level interrupt priority from INT2/T0L through port 0

(i.e. the above interrupt number from three through ten). It can also specify a low level or the highest level interrupt

priority to INT0 and INT1.

No.6699-3/21

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