- 您现在的位置：买卖IC网 > PDF目录69312 > R5F2L387CDFP 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80 PDF资料下载
参数资料
| 型号： | R5F2L387CDFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 12 X 12 MM, 0.50 MM PITCH, PLASTIC, LQFP-80 |
| 文件页数： | 35/74页 |
| 文件大小： | 959K |
| 代理商： | R5F2L387CDFP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页当前第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页
41
2588F–AVR–06/2013
ATtiny261/461/861
8.
System Control and Reset
8.0.1
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 shows the reset logic. Electrical parameters of the
reset circuitry are given in Table 19-4 on page 190.
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 dif-
ferent selections for the delay period are presented in “Clock Sources” on page 25.
MCU Status
Register (MCUSR)
Brown-out
Reset Circuit
BODLEVEL [1..0]
Delay Counters
CKSEL[1:0]
CK
TIMEOUT
WDRF
BORF
EXTRF
PORF
DATA BUS
Clock
Generator
SPIKE
FILTER
Pull-up Resistor
Watchdog
Oscillator
SUT[1:0]
Power-on Reset
Circuit
相关PDF资料 |
PDF描述 |
|---|---|
| R5F2L387CNFP | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80 |
| R5F2L368CDFP | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64 |
| R5F2L3AACDFA | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100 |
| R5F2L3ACCDFA | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100 |
| R5F2L38CCNFA | 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP80 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| R5F2L387CNFA#V0 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 48KB FLASH |
| R5F2L387CNFP#30 | 制造商:Renesas Electronics Corporation 功能描述:R8C/L38C FL-48K, PLQP0080KB-A - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 48KB FLASH 80LQFP |
| R5F2L387MDFA#V0 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 48KB FLASH |
| R5F2L387MNFA#V0 | 制造商:Renesas Electronics Corporation 功能描述:R8C/L38M 48+4/6 80LQFP 14X14 -20 TO +85 - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 48KB FLASH 80LQFP |
| R5F2L387MNFP#30 | 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 48KB FLASH 80LQFP |
发布紧急采购，3分钟左右您将得到回复。