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参数资料
| 型号： | M38503M6-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO42 |
| 封装： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件页数： | 4/52页 |
| 文件大小： | 806K |
| 代理商： | M38503M6-XXXFP |
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12
3850 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
INTERRUPTS
Interrupts occur by 14 sources among 14 sources: six external,
seven internal, and one software.
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 occurs if the
corresponding interrupt request and enable bits are “1” and the in-
terrupt disable flag is “0”.
Interrupt enable bits can be set or cleared by software.
Interrupt request bits can be cleared by software, but cannot be
set by software.
The BRK instruction cannot be disabled with any flag or bit. The I
(interrupt disable) flag disables all interrupts except the BRK in-
struction interrupt.
When several interrupts occur at the same time, the interrupts 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 disable flag is set and the corresponding interrupt
request bit is cleared.
3. The interrupt jump destination address is read from the vector
table into the program counter.
sNotes
When the active edge of an external interrupt (INT0–INT3, CNTR0,
CNTR1) is set, the corresponding interrupt request bit may also be
set. Therefore, take the following sequence:
1. Disable the interrupt
2. Change the interrupt edge selection register
(the timer XY mode register for CNTR0 and CNTR1)
3. Clear the interrupt request bit to “0”
4. Accept the interrupt.
相关PDF资料 |
PDF描述 |
|---|---|
| M38503E6SP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| M38504E6FP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO42 |
| M38504M6-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| M38504E6-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP42 |
| M38503E4-XXXSP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP42 |
相关代理商/技术参数 |
参数描述 |
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| M38504M6202F | 制造商:Panasonic Industrial Company 功能描述:SUB ONLY IC |
| M38504M6211F | 制造商:Panasonic Industrial Company 功能描述:IC SUB FOR P-M38504M6202F |
| M38507ARLSS | 功能描述:M-SUPPORT TOOL RoHS:否 类别:编程器，开发系统 >> 配件 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 标准包装:1 系列:- 附件类型:USB 至 1-Wire? RJ11 适配器 适用于相关产品:1-Wire? 设备 产品目录页面:1429 (CN2011-ZH PDF) |
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