Rev.3.11
Apr 5, 2006
REJ03B0017-0311
3803 Group (Spec.H)
Fig 21. Structure of interrupt-related registers
Interrupt edge selection register
(INTEDGE : address 003A16)
INT0 interrupt edge selection bit
INT1 interrupt edge selection bit
Not used (returns “0” when read)
INT2 interrupt edge selection bit
INT3 interrupt edge selection bit
INT4 interrupt edge selection bit
INT0, INT4 interrupt switch bit
0 : INT00, INT40 interrupt
1 : INT01, INT41 interrupt
Not used (returns “0” when read)
0 : Falling edge active
1 : Rising edge active
Interrupt request register 1
(IREQ1 : address 003C16)
INT0/Timer Z interrupt request bit
INT1 interrupt request bit
Serial I/O1 receive interrupt request bit
Serial I/O1 transmit interrupt request bit
Timer X interrupt request bit
Timer Y interrupt request bit
Timer 1 interrupt request bit
Timer 2 interrupt request bit
Interrupt request register 2
(IREQ2 : address 003D16)
CNTR0 interrupt request bit
CNTR1/Serial I/O3 receive interrupt
request bit
Serial I/O2/Timer Z interrupt request bit
INT2 interrupt request bit
INT3 interrupt request bit
INT4/CNTR2 interrupt request bit
AD converter/Serial I/O3 transmit
interrupt request bit
Not used (returns “0” when read)
0 : No interrupt request issued
1 : Interrupt request issued
Interrupt control register 1
(ICON1 : address 003E16)
INT0/Timer Z interrupt enable bit
INT1 interrupt enable bit
Serial I/O1 receive interrupt enable bit
Serial I/O1 transmit interrupt enable bit
Timer X interrupt enable bit
Timer Y interrupt enable bit
Timer 1 interrupt enable bit
Timer 2 interrupt enable bit
Interrupt control register 2
(ICON2 : address 003F16)
b7
b0
b7
b0
b7
b0
b7
b0
0 : Falling edge active
1 : Rising edge active
CNTR0 interrupt enable bit
CNTR1/Serial I/O3 receive interrupt
enable bit
Serial I/O2/Timer Z interrupt enable bit
INT2 interrupt enable bit
INT3 interrupt enable bit
INT4/CNTR2 interrupt enable bit
AD converter/Serial I/O3 transmit
interrupt enable bit
Not used (returns “0” when read)
(Do not write “1” to this bit.)
0 : Interrupts disabled
1 : Interrupts enabled
b7
b0
Interrupt source selection register
(INTSEL : address 003916)
INT0/Timer Z interrupt source selection bit
0 : INT0 interrupt
1 : Timer Z interrupt
Serial I/O2/Timer Z interrupt source selection bit
0 : Serial I/O2 interrupt
1 : Timer Z interrupt
Not used (Do not write “1” to these bits.)
INT4/CNTR2 interrupt source selection bit
0 : INT4 interrupt
1 : CNTR2 interrupt
Not used (Do not write “1” to this bit.)
CNTR1/Serial I/O3 receive interrupt source selection bit
0 : CNTR1 interrupt
1 : Serial I/O3 receive interrupt
AD converter/Serial I/O3 transmit interrupt source selection bit
0 : A/D converter interrupt
1 : Serial I/O3 transmit interrupt
(Do not write “1” to these bits simultaneously.)
b7
b0
0 : No interrupt request issued
1 : Interrupt request issued
0 : Interrupts disabled
1 : Interrupts enabled