LC865020B 查看數據表（PDF） - SANYO -> Panasonic
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LC865020B Datasheet PDF : 21 Pages
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LC865020B/16B/12B/08B
(8) Buzzer output
- The buzzer sound frequency is selectable ; 4 kHz, 2 kHz (using 32.768 kHz crystal oscillator for base timer clock)
(9) Remote-controlled receiver circuit (shares P73/INT3/T0IN pin)
- Noise rejection function
- Polarity switching
(10) Watchdog timer
- RC external watchdog timer
- Watchdog timer operation can be selected : Interrupt/reset
(11) Interrupt system
- 13-source 10-vectored interrupts :
1. External interrupt INT0 (including 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 T1L, timer T1H
7. Serial-interface SIO0
8. Serial-interface SIO1
9. A/D converter
10. Port 0
- Built-in interrupt priority control register
Microcontroller supports 3 levels of multiple interrupt; low level, high level, and highest level. For the 11 interrupt requests
from INT2 through Port 0, high/low level interrupt priority can be specified using the priority control register. Also, for
INT0 and INT1, highest/low level interrupt priority can be specified.
(12) Real-time service operation
Synchronizing with the interrupt request signals, the real-time service starts a 4-byte data transfer between which special
function registers within 1-instruction cycle after the request signal occurs, and then completes its operation within
5-instruction cycles. This operation is performed in parallel with CPU operation.
(13) Subroutine stack
- 128 levels (Max.) : The stack is located in RAM.
(14) Multiplication and division
16 bits × 8 bits (7-instruction cycles)
16 bits / 8 bits (7-instruction cycles)
(15) 3 oscillation circuits
- On-chip RC oscillator circuit for the system clock
- On-chip CF oscillator circuit for the system clock
- On-chip crystal oscillator circuit for the system clock and the time-base clock
XT1 pin can be used as P74.
No. 5650-3/21
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