參數(shù)資料
型號(hào)： 3820
廠(chǎng)商： Mitsubishi Electric Corporation
英文描述： SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述： 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù)： 19/66頁(yè)
文件大?。?/td> 1093K
代理商： 3820
19
MITSUBISHI MICROCOMPUTERS
3820 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Fig. 8 Interrupt control
Fig. 9 Structure of interrupt-related registers
Interrupt request bit
Interrupt enable bit
Interrupt disable flag (I)
BRK instruction
Reset
Interrupt request
7 0
7 0
7 0
7 0
7 0
0
Interrupt edge selection register
(INTEDGE : address 003A
16
)
INT
0
interrupt edge selection bit
INT
1
interrupt edge selection bit
INT
2
interrupt edge selection bit
INT
3
interrupt edge selection bit
Not used (return “0” when read)
Interrupt request register 1
(IREQ1 : address 003C
16
)
INT
0
interrupt request bit
INT
1
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 2 interrupt request bit
Timer 3 interrupt request bit
Interrupt control register 1
(ICON1 : address 003E
16
)
INT
0
interrupt enable bit
INT
1
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 2 interrupt enable bit
Timer 3 interrupt enable bit
0 : No interrupt request issued
1 : Interrupt request issued
Interrupt request register 2
(IREQ2 : address 003D
16
)
CNTR
0
interrupt request bit
CNTR
1
interrupt request bit
Timer 1 interrupt request bit
INT
2
interrupt request bit
INT
3
interrupt request bit
Key input interrupt request bit
Serial I/O2 interrupt request bit
Not used (returns “0” when read)
Interrupt control register 2
(ICON2 : address 003F
16
)
CNTR
0
interrupt enable bit
CNTR
1
interrupt enable bit
Timer 1 interrupt enable bit
INT
2
interrupt enable bit
INT
3
interrupt enable bit
Key input interrupt enable bit
Serial I/O2 interrupt enable bit
Not used (returns “0” when read)
(Do not write “1” to this bit)
0 : Interrupts disabled
1 : Interrupts enabled
0 : Falling edge active
1 : Rising edge active
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