140
2. APPLICAT ION
MITSUBISHI MICROCOMPUTER
3819 Group
2.6
Interrupt interval determination function
3819 Group USER’S MANUAL
Fig. 2.6.3 Structure of Interrupt edge selection register
Fig. 2.6.4 Structure of Interrupt request register 1
Interrupt request register 1
b7 b6 b5 b4 b3 b2 b1 b0
B
0
Function
At reset
R W
0
1
2
3
0
0
0
Interrupt request reigster 1 (IREQ1) [Address:3C
16
]
Name
INT
0
interrupt request bit
INT
1
/ZCR interrupt request bit
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
Serial I/O 1 interrupt request
bit
Serial I/O automatic transfer
interrupt request bit
G
G
6
6
6
6
4
5
6
7
0
0
0
0
Serial I/O 2 interrupt request
bit
Serial I/O 3 interrupt request
bit
Timer 1 interrupt request bit
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
Timer 2 interrupt request bit
0 : No interrupt request
1 : Interrupt request
0 : No interrupt request
1 : Interrupt request
6
6
6
6
6
"0" is set by software, but not "1."
INT
2
interrupt request bit
Remote control/counter
overflow interrupt request bit
G
G
Interrupt edge selection register
b7 b6 b5 b4 b3 b2 b1 b0
b
0
Function
At reset
R W
0
1
2
3
0
0
0
Interrupt edge selecton reigster (INTEDGE) [Address:3A
16
]
Name
INT
0
interrupt edge selection
bit
INT
1
/ZCR interrupt edge
selection bit
INT
2
interrupt edge selection
bit
INT
3
interrupt edge selection
bit
INT
4
interrupt edge selection
bit
INT
4
/A-D conversion interrupt
switch bit
0 : Falling edge active
1 : Rising edge active
0 : Falling edge active
1 : Rising edge active
0 : Falling edge active
1 : Rising edge active
0 : Falling edge active
1 : Rising edge active
0 : Falling edge active
1 : Rising edge active
0 : INT
4
interrupt
1 : A-D conversion interrupt
0 : Falling edge active
1 : Rising edge active
0 : Falling edge active
1 : Rising edge active
4
0
5
6
7
CNTR
0
pin active edge switch
bit
CNTR
1
pin active edge switch
bit
0
0
0