M30201 datasheet(30/172 Pages) RENESAS

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Mitsubishi microcomputers

M30201 Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Interrupts

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.

• DBC interrupt

This interrupt is exclusively for the debugger, do not use it in other circumstances.

• Watchdog timer interrupt

Generated by the 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. 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.

• 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 and UART1 transmission interrupt

These are interrupts that the serial I/O transmission generates.

• UART0 and UART1 reception interrupt

These are interrupts that the serial I/O reception generates.

• Timer A0 interrupt

This is an interrupts that timer A0 generates.

• Timer B0 and timer B2 interrupt

These are interrupts that timer B generates.

• Timer X0 to timer X2 interrupt

These are interrupts that timer X generates.

________

• INT0 and INT1 interrupt

______

An INT interrupt occurs if either a rising edge or a falling edge is input to the INT pin.

M30201 Datasheet(PDF) 30 Page - Renesas Technology Corp

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