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LC866548 Scheda tecnica(PDF) 3 Page - Sanyo Semicon Device

Il numero della parte LC866548
Spiegazioni elettronici  8-Bit Single Chip Microcontroller
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Produttore elettronici  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC866548 Scheda tecnica(HTML) 3 Page - Sanyo Semicon Device

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LC866548/40/32/28/24A
No.6700-3/21
(8) Timers
- Timer 0 : 16-bit timer/counter with 2-bit prescaler + 8-bit programmable prescaler
Mode 0 :
Two 8-bit timers with programmable prescaler
Mode 1 :
8-bit timer with a programmable prescaler + 8-bit counter
Mode 2 :
16-bit timer with a programmable prescaler
Mode 3 :
16-bit counter
The resolution of Timer is tCYC. (tCYC : cycle time)
- Timer 1 : 16-bit timer/PWM with
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 1/2tCYC by program
- Base timer
Every 500ms overflow system for a clock application (using 32.768kHz crystal oscillation for Base timer
clock)
Every 976
µs, 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 (connected to the P73/INT3/T0IN terminal)
- Noise rejection function (the time constant of noise rejection filter : 1tCYC/16tCYC/64tCYC)
(tCYC : instruction cycle time)
- Polarity switching
(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 bits)
4. External Interrupt INT3, base timer
5. Timer/counter T0H (Upper 8 bits)
6. Timer T1H / T1L
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.
(13) Subroutine stack levels
- 128 levels (Max.) : Stack area included in RAM area


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