參數(shù)資料
型號: ATTINY13A-SSU
廠商: Atmel
文件頁數(shù): 55/67頁
文件大小: 0K
描述: IC MCU AVR 1K FLASH 20MHZ 8SOIC
產(chǎn)品培訓模塊: MCU Product Line Introduction
tinyAVR Introduction
標準包裝: 100
系列: AVR® ATtiny
核心處理器: AVR
芯體尺寸: 8-位
速度: 20MHz
外圍設(shè)備: 欠壓檢測/復位,POR,PWM,WDT
輸入/輸出數(shù): 6
程序存儲器容量: 1KB(512 x 16)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 64 x 8
RAM 容量: 64 x 8
電壓 - 電源 (Vcc/Vdd): 1.8 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
包裝: 管件
產(chǎn)品目錄頁面: 612 (CN2011-ZH PDF)
配用: ATSTK600-DIP40-ND - STK600 SOCKET/ADAPTER 40-PDIP
ATAVRDRAGON-ND - KIT DRAGON FLASH MEM AVR
ATAVRISP2-ND - PROGRAMMER AVR IN SYSTEM
ATJTAGICE2-ND - AVR ON-CHIP D-BUG SYSTEM
35
8126F–AVR–05/12
ATtiny13A
8.
System Control and Reset
8.1
Resetting the AVR
During reset, all I/O Registers are set to their initial values, and the program starts execution
from the Reset Vector. The instruction placed at the Reset Vector must be a 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 placed at these
locations. The circuit diagram in Figure 8-1 on page 35 shows the reset logic. “System and
Reset Characteristics” on page 120 defines the electrical parameters of the reset circuitry.
Figure 8-1.
Reset Logic
The I/O ports of the AVR are immediately reset to their initial state when a reset source goes
active. This does not require any clock source to be running.
After all reset sources have gone inactive, a delay counter is invoked, stretching the internal
reset. This allows the power to reach a stable level before normal operation starts. The time-out
period of the delay counter is defined by the user through the SUT and CKSEL fuses. The differ-
ent selections for the delay period are presented in “Clock Sources” on page 24.
MCU Status
Register (MCUSR)
Brown-out
Reset Circuit
BODLEVEL[1:0]
Delay Counters
CKSEL[1:0]
CK
TIMEOUT
WDRF
BORF
EX
TRF
PORF
DATA BUS
Clock
Generator
SPIKE
FILTER
Pull-up Resistor
Watchdog
Oscillator
SUT[1:0]
Power-on Reset
Circuit
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