M37517F8HP Datasheet, PDF (13/98 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

7517 Group
Interrupt request bit
Interrupt enable bit
Interrupt disable flag (I)
BRK instruction
Reset
Fig. 9 Interrupt control
Interrupt request
b7
b0 _{Interrupt edge selection register}
(INTEDGE : address 003A16)
INT0 active edge selection bit
INT1 active edge selection bit
INT2 active edge selection bit
0 : Falling edge active
1 : Rising edge active
INT3 active edge selection bit
Serial I/O2 / INT3 interrupt source bit
0 : INT3 interrupt selected
1 : Serial I/O2 interrupt selected
Current integrate/A/D converter interrupt source bit 0 : AD converter interrupt selected
1 : Current integrate interrupt selected
Over current detect / Serial I/O1 transmit interrupt source bit _{0 : Serial I/O1 transmit interrupt selected}
1 : Over current detect interrupt selected
Not used (returns “0” when read)
b7
b0 _{Interrupt request register 1}
b7
(IREQ1 : address 003C16)
INT0 interrupt request bit
SCL/SDA interrupt request bit
INT1 interrupt request bit
INT2 interrupt request bit
INT3 / Serial I/O2 interrupt request bit
I²C interrupt request bit
Timer X interrupt request bit
Timer Y interrupt request bit
0 : No interrupt request issued
1 : Interrupt request issued
b7
b0 _{Interrupt control register 1}
b7
(ICON1 : address 003E16)
INT0 interrupt enable bit
SCL/SDA interrupt enable bit
INT1 interrupt enable bit
INT2 interrupt enable bit
INT3 / Serial I/O2 interrupt enable bit
I²C interrupt enable bit
Timer X interrupt enable bit
Timer Y interrupt enable bit
0 : Interrupts disabled
1 : Interrupts enabled
Fig. 10 Structure of interrupt-related registers (1)
b0 _{Interrupt request register 2}
(IREQ2 : address 003D16)
Timer 1 interrupt request bit
Timer 2 interrupt request bit
Serial I/O1 reception interrupt request bit
Serial I/O1 transmit / Over current detect interrupt request bit
CNTR0 interrupt request bit
CNTR1 interrupt request bit
AD converter /current integrate interrupt request bit
Not used (returns “0” when read)
0 : No interrupt request issued
1 : Interrupt request issued
b0 _{Interrupt control register 2}
(ICON2 : address 003F16)
Timer 1 interrupt enable bit
Timer 2 interrupt enable bit
Serial I/O1 reception interrupt enable bit
Serial I/O1 transmit / Over current detect interrupt enable bit
CNTR0 interrupt enable bit
CNTR1 interrupt enable bit
AD converter / current integrate interrupt enable bit
Not used (returns “0” when read)
(Do not write “1” to this bit)
0 : Interrupts disabled
1 : Interrupts enabled
Rev.1.01 Aug 02, 2004 page 13 of 96