Renesas M16C/50 Series User Manual page 212

M16C/5L Group, M16C/56 Group
12.2.6 Interrupt Source Select Register (IFSR)
Interrupt Source Select Register
b7 b6 b5 b4 b3 b2 b1
IFSR5-IFSR0 (INT5-INT0 interrupt polarity select bit) (b5-b0)
When setting these bits to 1 (both edges), make sure the corresponding POL bit in registers INT0IC to
INT5IC is set to 0 (falling edge).
R01UH0127EJ0110 Rev.1.10
Sep 01, 2011
b0 Symbol
IFSR
Bit Symbol Bit Name
INT0 interrupt polarity select
IFSR0
bit
INT1 interrupt polarity select
IFSR1
bit
INT2 interrupt polarity select
IFSR2
bit
INT3 interrupt polarity select
IFSR3
bit
INT4 interrupt polarity select
IFSR4
bit
INT5 interrupt polarity select
IFSR5
bit
Interrupt request source
IFSR6
select bit
Interrupt request source
IFSR7
select bit
Address
0207h
Function
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
INT4 interrupt not used
0 :
1 : INT4
INT5 interrupt not used
0 :
1 : INT5
12. Interrupts
Reset Value
00h
RW
RW
RW
RW
RW
RW
RW
RW
RW
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