參數(shù)資料
型號： M34280M1-XXXFP
元件分類： 微控制器/微處理器
英文描述： 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封裝： 0.300 INCH, 1.27 MM PITCH, PLASTIC, SOP-20
文件頁數(shù)： 34/48頁
文件大?。?/td> 605K
代理商： M34280M1-XXXFP
Interrupt
Mitsubishi microcomputers
M16C / 62N Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
38
Hardware Interrupts
Hardware interrupts are classified into two types — special interrupts and peripheral I/O interrupts.
(1) Special interrupts
Special interrupts are non-maskable interrupts.
Reset
____________
Reset occurs if an “L” is input to the RESET pin.
_______
NMI interrupt
_______
An NMI interrupt occurs if an “L” is input to the NMI pin.
________
DBC interrupt
This interrupt is exclusively for the debugger, do not use it in other circumstances.
Watchdog timer interrupt
Generated by the watchdog timer. Write to the watchdog timer start register after the watchdog timer
interrupt occurs (initialize watchdog timer).
Single-step interrupt
This interrupt is exclusively for the debugger, do not use it in other circumstances. With the debug
flag (D flag) set to “1”, a single-step interrupt occurs after one instruction is executed.
Address match interrupt
An address match interrupt occurs immediately before the instruction held in the address indicated by
the address match interrupt register is executed with the address match interrupt enable bit set to “1”.
If an address other than the first address of the instruction in the address match interrupt register is set,
no address match interrupt occurs.
(2) Peripheral I/O interrupts
A peripheral I/O interrupt is generated by one of built-in peripheral functions. Built-in peripheral func-
tions are dependent on classes of products, so the interrupt factors too are dependent on classes of
products. The interrupt vector table is the same as the one for software interrupt numbers 0 through
31 the INT instruction uses. Peripheral I/O interrupts are maskable interrupts.
Bus collision detection interrupt
This is an interrupt that the serial I/O bus collision detection generates.
DMA0 interrupt, DMA1 interrupt
These are interrupts that DMA generates.
Key-input interrupt
___
A key-input interrupt occurs if an “L” is input to the KI pin.
A-D conversion interrupt
This is an interrupt that the A-D converter generates.
UART0, UART1, UART2/NACK, SI/O3 and SI/O4 transmission interrupt
These are interrupts that the serial I/O transmission generates.
UART0, UART1, UART2/ACK, SI/O3 and SI/O4 reception interrupt
These are interrupts that the serial I/O reception generates.
Timer A0 interrupt through timer A4 interrupt
These are interrupts that timer A generates
Timer B0 interrupt through timer B5 interrupt
These are interrupts that timer B generates.
________
INT0 interrupt through INT2 interrupt
______
An INT interrupt occurs if either a rising edge or a falling edge or a both edge is input to the INT pin.
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