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参数资料
| 型号： | M37534E8FP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO36 |
| 封装： | 0.450 INCH, PLASTIC, SSOP-36 |
| 文件页数： | 8/53页 |
| 文件大小： | 680K |
| 代理商： | M37534E8FP |
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SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
7534 Group
MITSUBISHI MICROCOMPUTERS
16
Interrupt operation
Upon acceptance of an interrupt the following operations are auto-
matically performed:
1. The processing being executed is stopped.
2. The contents of the program counter and processor status regis-
ter are automatically pushed onto the stack.
3. The interrupt disable flag is set and the corresponding interrupt
request bit is cleared.
4. Concurrently with the push operation, the interrupt destination
address is read from the vector table into the program counter.
Notes on use
When the active edge of an external interrupt (INT0, INT1, CNTR0) is
set, the interrupt request bit may be set.
Therefore, please take following sequence:
1. Disable the external interrupt which is selected.
2. Change the active edge in interrupt edge selection register. (in
case of CNTR0: Timer X mode register)
3. Clear the set interrupt request bit to “0”.
4. Enable the external interrupt which is selected.
Remarks
Non-maskable
Valid in UART mode
Valid in USB mode
Valid in UART mode
Valid in USB mode
External interrupt
(active edge selectable)
External interrupt
(active edge selectable)
External interrupt (valid at falling)
STP release timer underflow
External interrupt (active edge
selectable)
Non-maskable software interrupt
Note 1: Vector addressed contain internal jump destination addresses.
2: Reset function in the same way as an interrupt with the highest priority.
Interrupts
Interrupts occur by 14 different sources : 4 external sources, 9 inter-
nal sources and 1 software source.
Interrupt control
All interrupts except the BRK instruction interrupt have an interrupt
request bit and an interrupt enable bit, and they are controlled by the
interrupt disable flag. When the interrupt enable bit and the interrupt
request bit are set to “1” and the interrupt disable flag is set to “0”, an
interrupt is accepted.
The interrupt request bit can be cleared by program but not be set.
The interrupt enable bit can be set and cleared by program.
It becomes usable by switching CNTR0 and A-D interrupt sources
with bit 7 of the interrupt edge selection register, timer 2 and serial I/
O2 interrupt sources with bit 6, timer X and key-on wake-up interrupt
sources with bit 5, and serial I/O transmit and INT1 interrupt sources
with bit 4.
The reset and BRK instruction interrupt can never be disabled with
any flag or bit. All interrupts except these are disabled when the in-
terrupt disable flag is set.
When several interrupts occur at the same time, the interrupts are
received according to priority.
Table 6 Interrupt vector address and priority
Vector addresses (Note 1)
High-order
FFFD16
FFFB16
FFF916
FFF716
FFF516
FFF316
FFF116
FFEF16
FFED16
Priority
1
2
3
4
5
6
7
8
9
Low-order
FFFC16
FFFA16
FFF816
FFF616
FFF416
FFF216
FFF016
FFEE16
FFEC16
Interrupt request generating conditions
At reset input
At completion of UART data receive
At detection of IN token
At completion of UART transmit shift or
when transmit buffer is empty
At detection of SETUP/OUT token or
At detection of Reset/ Suspend/ Resume
At detection of either rising or falling edge
of INT1 input
At detection of either rising or falling edge
of INT0 input
At timer X underflow
At falling of conjunction of input logical
level for port P0 (at input)
At timer 1 underflow
At timer 2 underflow
At completion of transmit/receive shift
At detection of either rising or falling edge
of CNTR0 input
At completion of A-D conversion
At BRK instruction execution
Interrupt source
Reset (Note 2)
UART receive
USB IN token
UART transmit
USB SETUP/OUT token
Reset/Suspend/Resume
INT1
INT0
Timer X
Key-on wake-up
Timer 1
Timer 2
Serial I/O2
CNTR0
A-D conversion
BRK instruction
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M37534E8SP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4-XXXGP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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