參數(shù)資料
型號： AT90S8535-8PI
廠商： Atmel
文件頁數(shù)： 42/127頁
文件大小： 0K
描述： IC MCU 8K FLSH 8MHZ A/D IT 40DIP
標準包裝： 18
系列： AVR® 90S
核心處理器： AVR
芯體尺寸： 8-位
速度： 8MHz
連通性： SPI，UART/USART
外圍設備： 欠壓檢測/復位，POR，PWM，WDT
輸入/輸出數(shù)： 32
程序存儲器容量： 8KB（4K x 16）
程序存儲器類型： 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量： 512 x 8
電壓 - 電源 (Vcc/Vdd)： 4 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 8x10b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 40-DIP（0.600"，15.24mm）
包裝： 管件
21
AT90S/LS8535
1041H–11/01
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
TIM2_COMP
; Timer2 Compare Handler
$004
rjmp
TIM2_OVF
; Timer2 Overflow Handler
$005
rjmp
TIM1_CAPT
; Timer1 Capture Handler
$006
rjmp
TIM1_COMPA
; Timer1 CompareA Handler
$007
rjmp
TIM1_COMPB
; Timer1 CompareB Handler
$008
rjmp
TIM1_OVF
; Timer1 Overflow Handler
$009
rjmp
TIM0_OVF
; Timer0 Overflow Handler
$00a
rjmp
SPI_STC;
; SPI Transfer Complete Handler
$00b
rjmp
UART_RXC
; UART RX Complete Handler
$00c
rjmp
UART_DRE
; UDR Empty Handler
$00d
rjmp
UART_TXC
; UART TX Complete Handler
$00e
rjmp
ADC
; ADC Conversion Complete Interrupt
Handler
$00f
rjmp
EE_RDY
; EEPROM Ready Handler
$010
rjmp
ANA_COMP
; Analog Comparator Handler
$011
MAIN:
ldi
r16, high(RAMEND); Main program start
$012
out
SPH,r16
$013
ldi
r16, low(RAMEND) ;
$014
out
SPL,r16
$015
<instr> xxx
……
…
Reset Sources
The AT90S8535 has three sources of reset:
Power-on Reset. The MCU is reset when the supply voltage is below the Power-on
Reset threshold (V
POT).
External Reset. The MCU is reset when a low level is present on the RESET pin for
more than 50 ns.
Watchdog Reset. The MCU is reset when the Watchdog timer period expires and
the Watchdog is enabled.
During reset, all I/O registers are set to their initial values and the program starts execu-
tion from address $000. The instruction placed in address $000 must be an RJMP
(relative jump) instruction to the reset handling routine. If the program never enables an
interrupt source, the interrupt vectors are not used and regular program code can be
13
$00C
UART, UDRE
UART Data Register Empty
14
$00D
UART, TX
UART, Tx Complete
15
$00E
ADC
ADC Conversion Complete
16
$00F
EE_RDY
EEPROM Ready
17
$010
ANA_COMP
Analog Comparator
Table 2. Reset and Interrupt Vectors (Continued)
Vector No.
Program Address
Source
Interrupt Definition
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