M16C62A Datasheet, PDF (43/242 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Interrupt
Mitsubishi microcomputers
M16C / 62A Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Interrupt control register (Note 2)
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
TBiIC(i=3 to 5)
BCNIC
DMiIC(i=0, 1)
KUPIC
ADIC
SiTIC(i=0 to 2)
SiRIC(i=0 to 2)
TAiIC(i=0 to 4)
TBiIC(i=0 to 2)
Address
004516 to 004716
004A16
004B16, 004C16
004D16
004E16
005116, 005316, 004F16
005216, 005416, 005016
005516 to 005916
005A16 to 005C16
When reset
XXXXX0002
XXXXX0002
XXXXX0002
XXXXX0002
XXXXX0002
XXXXX0002
XXXXX0002
XXXXX0002
XXXXX0002
Bit symbol
ILVL0
Bit name
Interrupt priority level
select bit
ILVL1
ILVL2
Function
RW
b2 b1 b0
0 0 0 : Level 0 (interrupt disabled)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
IR
Interrupt request bit
0 : Interrupt not requested
1 : Interrupt requested
(Note 1)
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns
out to be indeterminate.
Note 1: This bit can only be accessed for reset (= 0), but cannot be accessed for set (= 1).
Note 2: To rewrite the interrupt control register, do so at a point that dose not generate the
interrupt request for that register. For details, see the precautions for interrupts.
b7 b6 b5 b4 b3 b2 b1 b0
0
Symbol
Address
INTiIC(i=3)
004416
SiIC/INTjIC (i=4, 3) 004816, 004916
(j=5, 4) 004816, 004916
INTiIC(i=0 to 2)
005D16 to 005F16
When reset
XX00X0002
XX00X0002
XX00X0002
XX00X0002
Bit symbol
Bit name
ILVL0
Interrupt priority level
select bit
ILVL1
ILVL2
Function
RW
b2 b1 b0
0 0 0 : Level 0 (interrupt disabled)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
IR
Interrupt request bit
POL
Polarity select bit
0: Interrupt not requested
1: Interrupt requested
0 : Selects falling edge
1 : Selects rising edge
(Note 1)
Reserved bit
Must always be set to “0”
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns
out to be indeterminate.
Note 1: This bit can only be accessed for reset (= 0), but cannot be accessed for set (= 1).
Note 2: To rewrite the interrupt control register, do so at a point that dose not generate the
interrupt request for that register. For details, see the precautions for interrupts.
Note 3: INT3 to INT5 interrupts cannot be used. However, must set INT3IC to "0016". INT4IC
and INT5IC are shared with S3IC and S4IC respectively. When not using as S3IC and
S4IC, must set INT3IC and INT4IC to "0016".
Figure 1.10.3. Interrupt control registers
42