AT90PWM2(2005) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT90PWM2
(Rev.:2005)

8-bit Microcontroller with 8K Bytes In-System Programmable Flash

Atmel Corporation 

AT90PWM2/3

When the BOOTRST Fuse is programmed and the Boot section size set to 2K bytes, the

most typical and general program setup for the Reset and Interrupt Vector Addresses in

AT90PWM2/3 is:

Address Labels Code

Comments

.org 0x001

0x001

rjmp PSC2_CAPT

; PSC2 Capture event Handler

0x002

rjmp PSC2_EC

; PSC2 End Cycle Handler

...

... ...

;

0x01F

Handler

rjmp SPM_RDY

; Store Program Memory Ready

;

.org 0xC00

0xC00 RESET: ldi

r16,high(RAMEND); Main program start

0xC01

RAM

out SPH,r16

; Set Stack Pointer to top of

0xC02

ldi r16,low(RAMEND)

0xC03

0xC04

out SPL,r16

sei

; Enable interrupts

0xC05

<instr> xxx

When the BOOTRST Fuse is programmed, the Boot section size set to 2K bytes and the

IVSEL bit in the MCUCR Register is set before any interrupts are enabled, the most typ-

ical and general program setup for the Reset and Interrupt Vector Addresses in

AT90PWM2/3 is:

Address Labels Code

Comments

;

.org 0xC00

0xC00

rjmp RESET

; Reset handler

0xC01

rjmp PSC2_CAPT

; PSC2 Capture event Handler

0xC02

rjmp PSC2_EC

; PSC2 End Cycle Handler

...

... ...

;

0xC1F

Handler

rjmp SPM_RDY

; Store Program Memory Ready

;

0xC20 RESET: ldi r16,high(RAMEND); Main program start

0xC21

RAM

out SPH,r16

; Set Stack Pointer to top of

0xC22

ldi r16,low(RAMEND)

0xC23

0xC24

out SPL,r16

sei

; Enable interrupts

0xC25

<instr> xxx

59

4317B–AVR–02/05

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