Atmel AT90S8515-8PI - Page 20

AT90S4414/8515
20
The most typical and general program setup for the Reset and Interrupt Vector Addresses are:
Address Labels Code Comments
$000 rjmp RESET ; Reset Handler
$001 rjmp EXT_INT0 ; IRQ0 Handler
$002 rjmp EXT_INT1 ; IRQ1 Handler
$003 rjmp TIM1_CAPT ; Timer1 Capture Handler
$004 rjmp TIM1_COMPA ; Timer1 CompareA Handler
$005 rjmp TIM1_COMPB ; Timer1 CompareB Handler
$006 rjmp TIM1_OVF ; Timer1 Overflow Handler
$007 rjmp TIM0_OVF ; Timer0 Overflow Handler
$008 rjmp SPI_STC ; SPI Transfer Complete Handler
$009 rjmp UART_RXC ; UART RX Complete Handler
$00a rjmp UART_DRE ; UDR Empty Handler
$00b rjmp UART_TXC ; UART TX Complete Handler
$00c rjmp ANA_COMP ; Analog Comparator Handler
;
$00d MAIN: ldi r16,high(RAMEND); Main program start
$00e out SPH,r16
$00f ldi r16,low(RAMEND)
$010 out SPL,r16
$011 <instr> xxx
… … … …
Table 3. Reset and Interrupt Vectors
Vector No. Program Address Source Interrupt Definition
1 $000 RESET External Reset, Power-on Reset and Watchdog Reset
2 $001 INT0 External Interrupt Request 0
3 $002 INT1 External Interrupt Request 1
4 $003 TIMER1 CAPT Timer/Counter1 Capture Event
5 $004 TIMER1 COMPA Timer/Counter1 Compare Match A
6 $005 TIMER1 COMPB Timer/Counter1 Compare Match B
7 $006 TIMER1 OVF Timer/Counter1 Overflow
8 $007 TIMER0, OVF Timer/Counter0 Overflow
9 $008 SPI, STC Serial Transfer Complete
10 $009 UART, RX UART, Rx Complete
11 $00A UART, UDRE UART Data Register Empty
12 $00B UART, TX UART, Tx Complete
13 $00C ANA_COMP Analog Comparator