DOC7707 Datasheet, PDF(111/307 Page) List of Unclassifed Manufacturers – Microcontroller with 8/16K Bytes of ISP Flash and USB Controller

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DOC7707 Datasheet, PDF (111/307 Pages) List of Unclassifed Manufacturers – Microcontroller with 8/16K Bytes of ISP Flash and USB Controller

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AT90USB82/162

Assembly Code Example(1)

TIM16_ReadTCNTn:

; Save global interrupt flag

in r18,SREG

; Disable interrupts

cli

; Read TCNTn into r17:r16

in r16,TCNTnL

in r17,TCNTnH

; Restore global interrupt flag

out SREG,r18

ret

C Code Example(1)

unsigned int TIM16_ReadTCNTn( void )

{

unsigned char sreg;

unsigned int i;

/* Save global interrupt flag */

sreg = SREG;

/* Disable interrupts */

__disable_interrupt();

/* Read TCNTn into i */

i = TCNTn;

/* Restore global interrupt flag */

SREG = sreg;

return i;

}

Note: 1. See âAbout Code Examplesâ on page 7.

The assembly code example returns the TCNTn value in the r17:r16 register pair.

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