M37544 RENESAS [Renesas Technology Corp], M37544 Datasheet - Page 20

• Manufacturer Part Number: M37544
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
• Manufacturer: RENESAS [Renesas Technology Corp]

Rev.1.04
REJ03B0012-0104Z
7544 Group
Fig. 19 Interrupt control
Fig. 20 Structure of Interrupt-related registers
2004.06.08
Interrupt request bit
Interrupt enable bit
b7
b7
b7
b7
b7
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Interrupt disable flag I
b0
b0
b0
b0 Interrupt control register 1
b0 Interrupt control register 2
Interrupt edge selection register
(INTEDGE : address 003A
Interrupt request register 1
(IREQ1 : address 003C
Interrupt request register 2
(IREQ2 : address 003D
(ICON1 : address 003E
(ICON2 : address 003F
Key-on wake up interrupt request bit
CNTR
CNTR
Timer X interrupt request bit
Timer A interrupt request bit
Timer 1 interrupt request bit
Disable (returns “0” when read)
Disable (returns “0” when read)
Disable (returns “0” when read)
Timer A interrupt enable bit
Disable (returns “0” when read)
A/D conversion interrupt enable bit
Timer 1 interrupt enable bit
Disable (returns “0” when read)
(Do not write “1” to this bit)
Serial I/O receive interrupt request bit
Serial I/O transmit interrupt request bit
INT
INT
Disable (returns “0” when read)
Disable (returns “0” when read)
Disable (returns “0” when read)
A/D conversion interrupt request bit
Serial I/O receive interrupt enable bit
CNTR
Timer X interrupt enable bit
INT
INT
Disable (returns “0” when read)
P0
Serial I/O transmit interrupt enable bit
INT
INT
Key-on wake up interrupt enable bit
CNTR
0
0
1
0
1
0
1
0 : Falling edge active
1 : Rising edge active
0 : Falling edge active
1 : Rising edge active
key-on wakeup enable bit
0 : Key-on wakeup enabled
1 : Key-on wakeup disabled
interrupt request bit
interrupt request bit
interrupt enable bit
interrupt enable bit
interrupt edge selection bit
interrupt edge selection bit
0
1
0
1
interrupt request bit
interrupt request bit
interrupt enable bit
interrupt enable bit
BRK instruction
16
16
16
16
16
, initial value : 00
, initial value : 00
, initial value : 00
, initial value : 00
, initial value : 00
Reset
16
16
16
16
16
)
)
)
)
)
0 : No interrupt request issued
1 : Interrupt request issued
0 : No interrupt request issued
1 : Interrupt request issued
0 : Interrupts disabled
1 : Interrupts enabled
0 : Interrupts disabled
1 : Interrupts enabled
Interrupt request