Renesas R8C series

R8C/1A Group, R8C/1B Group 12. Interrupts
Rev.1.30 Dec 08, 2006 Page 97 of 315
REJ09B0252-0130
Figure 12.18 KIEN Register
Key Input Enable Register
(1)
Symbol Address After Reset
KIEN
0098h 00h
Bit Symbol Bit Name Function RW
NOTE :
1.
RW
KI0 input polarity select bit 0 : Falling edge
1 : Rising edge
KI1 input enable bit 0 : Disable
1 : Enable
b3 b2
RW
KI2EN RW
KI1PL
KI1 input polarity select bit 0 : Falling edge
1 : Rising edge
KI2 input enable bit 0 : Disable
1 : Enable
b7 b6 b5 b4 b1 b0
The IR bit in the KUPIC register may be set to 1 (requests interrupt) w hen the KIEN register is rew ritten.
Ref er to
12.5.5 Changing Interrupt Sources.
KI1EN RW
KI3EN
KI3 input enable bit
KI3PL RW
KI2PL
KI2 input polarity select bit 0 : Falling edge
1 : Rising edge
KI3 input polarity select bit 0 : Falling edge
1 : Rising edge
KI0EN RW
KI0PL RW
KI0 input enable bit 0 : Disable
1 : Enable
RW
0 : Disable
1 : Enable