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| 型号： | M38869FFAHP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 5 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件页数： | 29/113页 |
| 文件大小： | 1871K |
| 代理商： | M38869FFAHP |
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19
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
INTERRUPTS
Interrupts occur by 16 sources among 21 sources: nine external,
eleven 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.
Interrupt Source Selection
Any of the following interrupt sources can be selected by the inter-
rupt source selection register (address 003916).
1. INT0 or Input buffer full
2. INT1 or Output buffer empty
3. Serial I/O1 transmission or SCLSDA
4. CNTR0 or SCLSDA
5. Serial I/O2 or I2C
6. INT2 or I2C
7. CNTR1 or Key-on wake-up
8. A-D conversion or Key-on wake-up
External Interrupt Pin Selection
The occurrence sources of the external interrupt INT2, INT3, and
INT4 can be selected from either input from INT20, INT30, INT40
pin, or input from INT21, INT31, INT41 pin by the INT2, INT3, INT4
interrupt switch bit (bit 4 of address 002F16).
s Notes
When setting of the following register or bit is changed, the inter-
rupt request bit may be set to “1.”
Interrupt edge selection register (address 003A16)
Interrupt source selection register (address 003916)
INT2, INT3, INT4 interrupt switch bit of Port control register 2 (bit
4 of address 002F16)
Accept the interrupt after clearing the interrupt request bit to “0”
after interrupt is disabled and the above register or bit is set.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M38869FFAHP#UU | 功能描述:IC 740/3886 MCU FLASH 80LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 产品培训模块:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 标准包装:1 系列:M16C™ M32C/80/87 核心处理器:M32C/80 芯体尺寸:16/32-位 速度:32MHz 连通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外围设备:DMA，POR，PWM，WDT 输入/输出数:121 程序存储器容量:384KB（384K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:24K x 8 电压 - 电源 (Vcc/Vdd):3 V ~ 5.5 V 数据转换器:A/D 34x10b，D/A 2x8b 振荡器型:内部 工作温度:-20°C ~ 85°C 封装/外壳:144-LQFP 包装:托盘 产品目录页面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M38869FF-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38869M1-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38869M2-XXXHP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38869M3-XXXHP | 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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