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ATMEGA128L-8AL 参数 Datasheet PDF下载

ATMEGA128L-8AL图片预览
型号: ATMEGA128L-8AL
PDF下载: 下载PDF文件 查看货源
内容描述: [RISC Microcontroller, 8-Bit, FLASH, 8MHz, CMOS, PQFP64, 14 X 14 MM, 1 MM HEIGHT, 0.80 MM PITCH, PLASTIC, MS-026AEB, TQFP-64]
分类和应用: 时钟微控制器外围集成电路
文件页数/大小: 391 页 / 6192 K
品牌: ATMEL [ ATMEL ]
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ATmega128(L)  
• Bit 0 – IVCE: Interrupt Vector Change Enable  
The IVCE bit must be written to logic one to enable change of the IVSEL bit. IVCE is cleared by  
hardware four cycles after it is written or when IVSEL is written. Setting the IVCE bit will disable  
interrupts, as explained in the IVSEL description above. See Code Example below.  
Assembly Code Example  
Move_interrupts:  
; Enable change of interrupt vectors  
ldi r16, (1<<IVCE)  
out MCUCR, r16  
; Move interrupts to boot flash section  
ldi r16, (1<<IVSEL)  
out MCUCR, r16  
ret  
C Code Example  
void Move_interrupts(void)  
{
/* Enable change of interrupt vectors */  
MCUCR = (1<<IVCE);  
/* Move interrupts to boot flash section */  
MCUCR = (1<<IVSEL);  
}
65  
2467P–AVR–08/07  
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