ATmega162 datasheet(62/324 Pages) ATMEL

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ATmega162 Scheda tecnica(PDF) 62 Page - ATMEL Corporation

Il numero della parte	ATmega162

Spiegazioni elettronici	8-bit Microcontroller with 16K Bytes In-System Programmable Flash

PDF	324 Pages

Scroll/Zoom	100%

Produttore elettronici	ATMEL [ATMEL Corporation]

Homepage	http://www.atmel.com

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62 / 324 page

2513K–AVR–07/09

ATmega162/V

• 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 Inter?upt Vectors

ldi

r16, (1<<IVCE)

out

GICR, r16

; Move interrupts to Boo? Flash section

ldi

r16, (1<<IVSEL)

out

GICR, r16

ret

C Code Example

void

Move_interrupts(void)

{

/* Enable change of?Interrupt Vectors */

GICR = (1<<IVCE);

/* Move interrupts to Bo?t Flash section */

GICR = (1<<IVSEL);

}

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