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56
Tentative Specifications REV.A
S
pecifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M16C / 62T Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
deveopmen
Interrupt
Figure 1.14.3. Interrupt control registers
Symbol
INTiIC (i=3)
SiIC/INTjIC (i=4, 3)
Address
0044
16
0048
16
, 0049
16
When reset
XX00X000
2
XX00X000
2
(j=4, 5)
INTiIC (i=0 to 2)
005D
16
to 005F
16
XX00X000
2
Bit
Functio
n
Bit
symbol
W
R
0
b4
b3
b2
b1
b0
AA
IR
POL
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns
out to be “0”.
Interrupt priority level
select bit
Interrupt request bit
Polarity select bit
Reserved bit
0: Interrupt not requested
1: Interrupt requested
0 : Selects falling edge
1 : Selects rising edge
Always set to “0”
ILVL1
ILVL2
Note 1: This bit can only be accessed for reset (= 0), but cannot be accessed for set (= 1).
Note 2: In M30623(80-pin package), can not use INT3 to INT5 interrupts. Always set INT3IC
to ‘‘00’’. Each of INT4IC and INT5IC is shared with S3IC and S4IC, but in case of not
using as S3IC and S4IC, always set to ‘‘00’’.
Note 3: 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 1)
Interrupt control register
b7
b6
b5
b4
b3
b2
b1
b0
AAA
AAA
Bit
Functio
n
Bit symbol
ILVL0
W
R
Symbol
Address
0045
16
to 0047
16
When reset
XXXXX000
2
XXXXX000
2
XXXXX000
2
XXXXX000
2
XXXXX000
2
XXXXX000
2
XXXXX000
2
XXXXX000
2
XXXXX000
2
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)
004A
16
004B
16
, 004C
16
004D
16
004E
16
0051
16
, 0053
16
, 004F
16
0052
16
, 0054
16
, 0050
16
0055
16
to 0059
16
005A
16
to 005C
16
I
R
Interrupt priority level
select bit
Interrupt request bit
0 : Interrupt not requested
1 : Interrupt requested
ILVL1
ILVL2
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns
out to be “0”.
(Note 1)
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.
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
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
b2 b1 b0
AA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA
AAA