Mitsubishi microcomputers
M16C / 61 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Interrupt
44
Table 1.13.2. Interrupts assigned to the variable vector tables and addresses of vector tables
Software interrupt number
Interrupt source
Vector table address
Address (L) to address (H)
Remarks
Cannot be masked I flag
+0 to +3 (Note)
BRK instruction
Software interrupt number 0
+44 to +47 (Note)
DMA0
Software interrupt number 11
+48 to +51 (Note)
DMA1
Software interrupt number 12
+52 to +55 (Note)
Key input interrupt
Software interrupt number 13
+56 to +59 (Note)
A-D
Software interrupt number 14
+68 to +71 (Note)
UART0 transmit
Software interrupt number 17
+72 to +75 (Note)
UART0 receive
Software interrupt number 18
+76 to +79 (Note)
UART1 transmit
Software interrupt number 19
+80 to +83 (Note)
UART1 receive
Software interrupt number 20
+84 to +87 (Note)
Timer A0
Software interrupt number 21
+88 to +91 (Note)
Timer A1
Software interrupt number 22
+92 to +95 (Note)
Timer A2
Software interrupt number 23
+96 to +99 (Note)
Timer A3
Software interrupt number 24
+100 to +103 (Note)
Timer A4
Software interrupt number 25
+104 to +107 (Note)
Timer B0
Software interrupt number 26
+108 to +111 (Note)
Timer B1
Software interrupt number 27
+112 to +115 (Note)
Timer B2
Software interrupt number 28
+116 to +119 (Note)
INT0
Software interrupt number 29
+120 to +123 (Note)
INT1
Software interrupt number 30
+124 to +127 (Note)
INT2
Software interrupt number 31
+128 to +131 (Note)
Software interrupt
Software interrupt number 32
+252 to +255 (Note)
Software interrupt number 63
to
Note: Address relative to address in interrupt table register (INTB)
Cannot be masked I flag
+40 to +43 (Note)
Bus collision detection
Software interrupt number 10
+60 to +63 (Note)
UART2 transmit
Software interrupt number 15
+64 to +67 (Note)
UART2 receive
Software interrupt number 16
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 1.13.2 shows the
interrupts assigned to the variable vector tables and addresses of vector tables.