M37544G Mitsubishi Electric, M37544G Datasheet - Page 18

• Manufacturer Part Number: M37544G
• Description: Single-Chip 8-Bit CMOS Microcomputer
• Manufacturer: Mitsubishi Electric

Fig. 17 Interrupt control
Fig. 18 Structure of Interrupt-related registers
18
Interrupt request bit
Interrupt enable bit
b7
b7
b7
b7
b7
Interrupt disable flag I
b0
b0
b0
b0 Interrupt control register 1
b0 Interrupt control register 2
Interrupt edge selection register
(INTEDGE : address 003A
(IREQ1 : address 003C
(IREQ2 : address 003D
(ICON1 : address 003E
(ICON2 : address 003F
Interrupt request register 1
Interrupt request register 2
Serial I/O receive interrupt request bit
Serial I/O transmit interrupt request bit
INT
INT
Key-on wake up interrupt request bit
CNTR
CNTR
Timer X interrupt request bit
Disable (returns “0” when read)
Disable (returns “0” when read)
Timer A interrupt request bit
Disable (returns “0” when read)
A-D conversion interrupt request bit
Timer 1 interrupt request bit
Disable (returns “0” when read)
Serial I/O receive interrupt enable bit
Serial I/O transmit interrupt enable bit
INT
INT
Key-on wake up interrupt enable bit
CNTR
CNTR
Timer X interrupt enable bit
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)
INT
INT
Not used (returns “0” when read)
P0
0
0
1
0
1
0
1
0 : Falling edge active
1 : Rising edge active
0 : Falling edge active
1 : Rising edge active
0 : Key-on wakeup enabled
1 : Key-on wakeup disabled
key-on wakeup enable bit
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
Reset
, initial value : 00
16
16
16
16
16
)
)
)
)
)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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
MITSUBISHI MICROCOMPUTERS
Interrupt request
7544 Group