M16623MC View Datasheet(PDF) -

Interrupt

Mitsubishi microcomputers

M16C / 62A Group (80-pin)

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

• Variable vector tables

The addresses in the variable vector table can be modified, according to the user’s settings. Indicate

the first address using the interrupt table register (INTB). The 256-byte area subsequent to the ad-

dress the INTB indicates becomes the area for the variable vector tables. One vector table comprises

four bytes. Set the first address of the interrupt routine in each vector table. Table 1.10.2 shows the

interrupts assigned to the variable vector tables and addresses of vector tables.

Table 1.10.2. Interrupts assigned to the variable vector tables and addresses of vector tables

Software interrupt number Vector table address

Address (L) to address (H)

Interrupt source

Software interrupt number 0

+0 to +3 (Note 1)

BRK instruction

Remarks

Cannot be masked I flag

Software interrupt number 4

Software interrupt number 5

+16 to +19 (Note 1)

+20 to +23 (Note 1)

INT3 (Note 4)

Timer B5

Software interrupt number 6

+24 to +27 (Note 1) Timer B4

Software interrupt number 7

+28 to +31 (Note 1) Timer B3

Software interrupt number 8

+32 to +35 (Note 1) SI/O4/INT5 (Note 3, 4)

Software interrupt number 9

+36 to +39 (Note 1) SI/O3/INT4 (Note 3, 4)

Software interrupt number 10 +40 to +43 (Note 1) Bus collision detection

Software interrupt number 11 +44 to +47 (Note 1) DMA0

Software interrupt number 12 +48 to +51 (Note 1) DMA1

Software interrupt number 13 +52 to +55 (Note 1) Key input interrupt

Software interrupt number 14 +56 to +59 (Note 1) A-D

Software interrupt number 15 +60 to +63 (Note 1) UART2 transmit/NACK (Note 2)

Software interrupt number 16 +64 to +67 (Note 1) UART2 receive/ACK (Note 2)

Software interrupt number 17 +68 to +71 (Note 1) UART0 transmit

Software interrupt number 18 +72 to +75 (Note 1) UART0 receive

Software interrupt number 19 +76 to +79 (Note 1) UART1 transmit

Software interrupt number 20 +80 to +83 (Note 1) UART1 receive

Software interrupt number 21 +84 to +87 (Note 1) Timer A0

Software interrupt number 22 +88 to +91 (Note 1) Timer A1

Software interrupt number 23 +92 to +95 (Note 1) Timer A2

Software interrupt number 24 +96 to +99 (Note 1) Timer A3

Software interrupt number 25 +100 to +103 (Note 1) Timer A4

Software interrupt number 26 +104 to +107 (Note 1) Timer B0

Software interrupt number 27 +108 to +111 (Note 1) Timer B1

Software interrupt number 28 +112 to +115 (Note 1) Timer B2

Software interrupt number 29

Software interrupt number 30

+116 to +119 (Note 1)

+120 to +123 (Note 1)

INT0

INT1

Software interrupt number 31 +124 to +127 (Note 1) INT2

Software interrupt number 32

to

Software interrupt number 63

+128 to +131 (Note 1)

to

+252 to +255 (Note 1)

Software interrupt

Cannot be masked I flag

Note 1: Address relative to address in interrupt table register (INTB).

Note 2: When IIC mode is selected, NACK and ACK interrupts are selected.

Note 3: It is selected by interrupt request cause select bits (bits 6, 7 in address 035F16 ).

Note 4: P15/INT3 to P17/INT5 do not connect to outside. INT3 to INT5 interrupt cannot

be used in M16C/62A (80-pin version) group.

40

Share Link: