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| 型號： | M37560MF-XXXGP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100 |
| 文件頁數(shù)： | 18/90頁 |
| 文件大?。?/td> | 1682K |
| 代理商： | M37560MF-XXXGP |
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
24
INTERRUPTS
Interrupts occur by seventeen sources: seven external, nine inter-
nal, and one software. When an interrupt request is accepted, the
program branches to the interrupt jump destination address set in
the vector address (see Figure 10).
Interrupt Control
Each interrupt is controlled by an interrupt request bit, an interrupt
enable bit, and the interrupt disable flag except for the software in-
terrupt set by the BRK instruction. An interrupt is accepted if the
corresponding interrupt request and enable bits are “1” and the in-
terrupt disable flag is “0”.
Interrupt enable bits can be set to “0” or “1” by program.
Interrupt request bits can be set to “0” by program, but cannot be
set to “1” by program.
The BRK instruction interrupt and reset cannot be disabled with
any flag or bit. When the interrupt disable (I) flag is set to “1”, all
interrupt requests except the BRK instruction interrupt and reset
are not accepted.
When several interrupt requests occur at the same time, the inter-
rupts are received according to priority.
Interrupt Operation
By acceptance of an interrupt, the following operations are auto-
matically performed:
1. The contents of the program counter and the processor status
register are automatically pushed onto the stack.
2. The interrupt jump destination address is read from the vector
table into the program counter.
3. The interrupt disable flag is set to “1” and the corresponding in-
terrupt request bit is set to “0”.
Notes1: Vector addresses contain interrupt jump destination addresses.
2: Reset is not an interrupt. Reset has the higher priority than all interrupts.
Table 10 Interrupt vector addresses and priority
Remarks
Interrupt Request
Generating Conditions
At reset
At detection of either rising or
falling edge of INT0 input
At detection of either rising or
falling edge of INT1 input
At completion of serial I/O1 data
reception
At completion of serial I/O1
transmit shift or when transmis-
sion buffer is empty
Interrupt Source
Low
High
Priority
Vector Addresses (Note 1)
Reset (Note 2)
INT0
INT1
Serial I/O1
reception
Serial I/O1
transmission
Timer X
Timer Y
Timer 2
Timer 3
CNTR0
CNTR1
Timer 1
INT2
Serial I/O2
Key input
(Key-on wake-up)
ADT
A-D conversion
BRK instruction
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
FFFD16
FFFB16
FFF916
FFF716
FFF516
FFF316
FFF116
FFEF16
FFED16
FFEB16
FFE916
FFE716
FFE516
FFE316
FFE116
FFDF16
FFDD16
FFFC16
FFFA16
FFF816
FFF616
FFF416
FFF216
FFF016
FFEE16
FFEC16
FFEA16
FFE816
FFE616
FFE416
FFE216
FFE016
FFDE16
FFDC16
At timer X underflow
At timer Y underflow
At timer 2 underflow
At timer 3 underflow
At detection of either rising or
falling edge of CNTR0 input
At detection of either rising or
falling edge of CNTR1 input
At timer 1 underflow
At detection of either rising or
falling edge of INT2 input
At completion of serial I/O2 data
transmission or reception
At falling of conjunction of input
level for port P2 (at input mode)
At falling edge of ADT input
At completion of A-D conversion
At BRK instruction execution
Non-maskable
External interrupt
(active edge selectable)
External interrupt
(active edge selectable)
Valid when serial I/O1 is selected
External interrupt
(active edge selectable)
External interrupt
(active edge selectable)
External interrupt
(active edge selectable)
Valid when serial I/O2 is selected
External interrupt
(valid at falling)
Valid when ADT interrupt is selected
External interrupt
(valid at falling)
Valid when A-D interrupt is selected
Non-maskable software interrupt
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