
1-40
Under
development
Specifications in this manual are tentative and subject to change
Rev. H
Overview of Interrupts
MITSUBISHI MICROCOMPUTERS
M30222 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Table 1.18. 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
Not masked by I flag
+0 to +3 (Note 1)
BRK instruction
Software interrupt number 0
+44 to +47 (Note 1)
Software interrupt number 11
+48 to +51 (Note 1)
Software interrupt number 12
+52 to +55 (Note 1)
Software interrupt number 13
+56 to +59 (Note 1)
Software interrupt number 14
+68 to +71 (Note 1)
Software interrupt number 17
+72 to +75 (Note 1)
Software interrupt number 18
+76 to +79 (Note 1)
Software interrupt number 19
+80 to +83 (Note 1)
Software interrupt number 20
+84 to +87 (Note 1)
Software interrupt number 21
+88 to +91 (Note 1)
Software interrupt number 22
+92 to +95 (Note 1)
Software interrupt number 23
+96 to +99 (Note 1)
Software interrupt number 24
+100 to +103 (Note 1)
Software interrupt number 25
+104 to +107 (Note 1)
Software interrupt number 26
+108 to +111 (Note 1)
Software interrupt number 27
+112 to +115 (Note 1)
Software interrupt number 28
+116 to +119 (Note 1)
Software interrupt number 29
+120 to +123 (Note 1)
Software interrupt number 30
+124 to +127 (Note 1)
Software interrupt number 31
+128 to +131 (Note 1)
Software interrupt number 32
+252 to +255 (Note 1)
Software interrupt number 63
to
Note 1: Address relative to address in interrupt table register (INTB).
Note 2: When IIC mode is selected, NACK and ACK interrupts are selected.
+40 to +43 (Note 1)
Software interrupt number 10
+60 to + 63 (Note 1)
Software interrupt number 15
+64 to +67 (Note 1)
Software interrupt number 16
+20 to +23 (Note 1)
Software interrupt number 5
+24 to +27 (Note 1)
Software interrupt number 6
+28 to +31 (Note 1)
Software interrupt number 7
+32 to +35 (Note 1)
Software interrupt number 8
+16 to +19 (Note 1)
INT3 / SIO4 (Note 3)
Software interrupt number 4
+36 to +39 (Note 1)
INT6
Software interrupt number 9
Timer B3
Timer B4
Timer B5
to
DMA0
DMA1
Key input interrupt
A-D
UART1 transmit
UART1 receive
UART0 transmit
UART0 receive
Timer A0
Timer A1
Timer A2
Timer A3/ INT4 (Note 3)
Timer A4 / INT5 (Note 3)
Timer B0
Timer B1
Timer B2
INT0
INT1
INT2 / SIO3 (Note 3)
Software interrupt
Bus collision detection
UART2 transmit (Note 2)
UART2 receive (Note 2)
INT7
Not masked by I flag
~
Note 3: Selected by Interrupt Request Cause Select bit (bits 4, 5, 6, 7 at address 035F16)
Variable vector tables
The addresses in the variable vector table can be modified, according to the user’s settings. Before enabling
interrupts, the user msut load the INTB register with the address of the first entry in the table. The 256-byte
area subsequent to the address 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
1.18 shows the interrupts assigned to the variable vector tables and addresses of vector tables. shows the
interrupts assigned to the variable vector tables and addresses of vector tables.