Renesas M16C FAMILY series Hardware Manual page 94

M 1 6 C 2 / 8 G o r u p ( M 1 6 C
Interrupt Request Cause Select Register
b7 b6 b5 b4 b3
NOTES:
1. When setting this bit to "1" (both edges), make sure the POL bit in the INT0IC to INT5IC registers
is set to "0" (falling edge).
2. When setting this bit to "0" (SI/O3, SI/O4), make sure the POL bit in the S3IC and S4IC registers
is set to "0" (falling edge).
Interrupt Request Cause Select Register 2
b7 b6 b5 b4 b3
NOTE:
1. Set this bit to "1" befor you enable interrupt after resetting.
Figure 9.4 IFSR Register and IFSR2A Register
R e . v 2 0 . 0 J a . n 3 , 1 2 0 0 7
R E J 0 9 B 0 0 4 7 0 - 2 0 0
2 / , 8 M 1 6 C 2 / 8 ) B
b2 b1 b0
Symbol
IFSR
Bit Symbol
IFSR0 INT0 interrupt polarity
switching bit
IFSR1 INT1 interrupt polarity
switching bit
IFSR2 INT2 interrupt polarity
switching bit
IFSR3 INT3 interrupt polarity
switching bit
IFSR4 INT4 interrupt polarity
switching bit
IFSR5 INT5 interrupt polarity
switching bit
IFSR6 Interrupt request cause
select bit
IFSR7 Interrupt request cause
select bit
b2 b1 b0
Symbol
1
IFSR2A
Bit Symbol
Reserved bit
IFSR20
Nothing is assigned. When write, set to "0".
(b5-b1)
When read, the contents are indeterminate
Interrupt request cause
IFSR26
select bit
Interrupt request cause
IFSR27
select bit
page 74
f o 3 8 5
Address After Reset
035F 00
16
16
Bit Name
0 : One edge
1 : Both edges
0 : One edge
1 : Both edges
0 : One edge
1 : Both edges
0 : One edge
1 : Both edges
0 : One edge
1 : Both edges
0 : One edge
1 : Both edges
0 : SI/O3
1 : INT4
0 : SI/O4
1 : INT5
Address After Reset
035E 00XXXXX0
16
Bit Name
(1) Set to "1"
0 : IC/OC base timer
1 : S
0 : IC/OC interrupt 1
1 : I
Function
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
2
Function
/S
CL DA
2
C bus interface
9. Interrupts
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW