3803 Datasheet, PDF (27/119 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3803 Group (Spec.L)
b7
b0 _{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
0 : Falling edge active
1 : Rising edge active
b7
b0 _{Interrupt request register 1}
b7
(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
0 : No interrupt request issued
1 : Interrupt request issued
b0 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
b7
b0 ^{Interrupt control register 1}
b7
(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
0 : Interrupts disabled
1 : Interrupts enabled
b0 ^{Interrupt control register 2}
(ICON2 : address 003F16)
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”.)
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
(Do not write “1” to these bits simultaneously.)
0 : Serial I/O2 interrupt
1 : Timer Z interrupt
Not used (Do not write “1”.)
INT4/CNTR2 interrupt source selection bit
0 : INT4 interrupt
1 : CNTR2 interrupt
Not used (Do not write “1”.)
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
Fig 21. Structure of interrupt-related registers
Rev.1.00 Apr 2, 2007 Page 27 of 117
REJ03B0212-0100