m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 120

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

R
R
M
e
E
3
. v
J
Figure 10.4 Interrupt Control Register (2)
2
0
1
C
9
3 .
B
8 /
0
1
10.6.2.1 ILVL2 to ILVL0 Bits
10.6.2.2 IR Bit
3
0
The ILVL2 to ILVL0 bits determines the interrupt priority level. The higher the interrupt priority level,
the higher interrupt priority is.
When an interrupt request is generated, its interrupt priority level is compared to IPL. This interrupt is
acknowledged only when its interrupt priority level is higher than IPL. When the ILVL2 to ILVL0 bits
are set to "000
The IR bit is automatically set to "1" (interrupt requested) when an interrupt request is generated. The
IR bit is automatically set to "0" (no interrupt requested) after an interrupt request is acknowledged and
the program in the corresponding interrupt vector is executed.
The IR bit can be set to "0" by program. Do not set to "1".
3
J
G
4
a
0 -
n
o r
Interrupt Control Register
b7
3 .
1
NOTES:
u
, 1
3
p
b6
1
1. When the 16-bit data bus is used in microprocessor or memory expansion mode, each pin for the
2. The IR bit can be set to "0" only (do not set to "1").
3. Set the POL bit to "0" when a corresponding bit in the IFSR register is set to "1" (both edges).
4. When setting the LVS bit to "1", set a bit corresponding to the IFSR register to "0" (one edge).
2
(
M
0
INT3 to INT5 bits is used as the data bus. Set the ILVL2 to ILVL0 bits in the INT3IC, INT4IC and
INT5IC registers to "000
b5
0
3
6
2
b4
C
8 /
Page 97
2
b3
" (level 0), this interrupt is ignored.
, 3
b2
M
b1
3
2
C
b0
f o
8 /
4
(b7 - b6)
3
Symbol
8
ILVL0
ILVL1
ILVL2
) T
8
POL
2
LVS
Symbol
INT0IC to INT2IC
INT3IC to INT5IC
Bit
".
IR
Interrupt Priority Level
Select Bit
Interrupt Request Bit
Level Sensitive/Edge
Sensitive Switch Bit
Nothing is assigned. When write, set to "0".
When read, its content is indeterminate.
Polarity Switch Bit
(1)
Bit Name
Address
009E
007C
16
16
, 007E
, 009A
b2 b1 b0
0 0 0 : Level 0
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
0 : Requests no interrupt
1 : Requests an interrupt
0 : Selects falling edge or "L"
1 : Selects rising edge or "H"
0 : Edge sensitive
1 : Level sensitive
16
16
, 009C
, 007A
16
16
Function
(interrupt disabled)
After Reset
XX00 X000
XX00 X000
(4)
(2)
2
2
(3)
RW
RW
RW
RW
RW
RW
RW
10. Interrupts