參數(shù)資料
型號： MB9AF312MPMC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, FLASH, 40 MHz, RISC MICROCONTROLLER, PQFP80
封裝： 0.50 MM PITCH, PLASTIC, LQFP-80
文件頁數(shù)： 65/114頁
文件大?。?/td> 1357K
代理商： MB9AF312MPMC
ATmega48PA/88PA/168PA [DATASHEET]
9223F–AVR–04/14
54
When the BOOTRST fuse is unprogrammed, 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 typical and general program setup for the reset and interrupt vector
addresses in the Atmel ATmega88PA is:
Address Labels
Code
Comments
0x000
RESET:
ldi r16,high(RAMEND); Main program start
0x001
out
SPH,r16
; Set Stack Pointer to top of RAM
0x002
ldi
r16,low(RAMEND)
0x003
out
SPL,r16
0x004
sei
; Enable interrupts
0x005
<instr> xxx
;
.org 0xC01
0xC01
rjmp
EXT_INT0
; IRQ0 Handler
0xC02
rjmp
EXT_INT1
; IRQ1 Handler
...
;
0xC19
rjmp
SPM_RDY
; Store Program Memory Ready Handler
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 the Atmel ATmega88PA is:
Address Labels
Code
Comments
.org 0x001
0x001
rjmp
EXT_INT0
; IRQ0 Handler
0x002
rjmp
EXT_INT1
; IRQ1 Handler
...
;
0x019
rjmp
SPM_RDY
; Store Program Memory Ready Handler
;
.org 0xC00
0xC00
RESET:
ldi
r16,high(RAMEND); Main program start
0xC01
out
SPH,r16
; Set Stack Pointer to top of RAM
0xC02
ldi
r16,low(RAMEND)
0xC03
out
SPL,r16
0xC04
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 typical and general program setup for the reset and interrupt vector
addresses in the Atmel ATmega88PA is:
Address Labels
Code
Comments
;
.org 0xC00
0xC00
rjmp
RESET
; Reset handler
0xC01
rjmp
EXT_INT0
; IRQ0 Handler
0xC02
rjmp
EXT_INT1
; IRQ1 Handler
...
;
0xC19
rjmp
SPM_RDY
; Store Program Memory Ready Handler
;
0xC1A
RESET:
ldi
r16,high(RAMEND); Main program start
0xC1B
out
SPH,r16
; Set Stack Pointer to top of RAM
0xC1C
ldi
r16,low(RAMEND)
0xC1D
out
SPL,r16
0xC1E
sei
; Enable interrupts
0xC1F
<instr> xxx
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