欢迎访问ic37.com |
会员登录 免费注册
发布采购

PIC18F8621-I/PT 参数 Datasheet PDF下载

PIC18F8621-I/PT图片预览
型号: PIC18F8621-I/PT
PDF下载: 下载PDF文件 查看货源
内容描述: 八十〇分之六十四引脚高性能, 64 KB的增强型闪存微控制器与A / D [64/80-Pin High-Performance, 64-Kbyte Enhanced Flash Microcontrollers with A/D]
分类和应用: 闪存微控制器和处理器外围集成电路装置时钟
文件页数/大小: 396 页 / 6639 K
品牌: MICROCHIP [ MICROCHIP ]
 浏览型号PIC18F8621-I/PT的Datasheet PDF文件第207页浏览型号PIC18F8621-I/PT的Datasheet PDF文件第208页浏览型号PIC18F8621-I/PT的Datasheet PDF文件第209页浏览型号PIC18F8621-I/PT的Datasheet PDF文件第210页浏览型号PIC18F8621-I/PT的Datasheet PDF文件第212页浏览型号PIC18F8621-I/PT的Datasheet PDF文件第213页浏览型号PIC18F8621-I/PT的Datasheet PDF文件第214页浏览型号PIC18F8621-I/PT的Datasheet PDF文件第215页  
PIC18F6525/6621/8525/8621  
FIGURE 18-27:  
BUS COLLISION DURING START CONDITION (SCL = 0)  
SDA = 0, SCL = 1  
TBRG  
TBRG  
SDA  
Set SEN, enable Start  
sequence if SDA = 1, SCL = 1  
SCL  
SEN  
SCL = 0before SDA = 0,  
bus collision occurs. Set BCLIF.  
SCL = 0before BRG time-out,  
bus collision occurs. Set BCLIF.  
BCLIF  
Interrupt cleared  
in software  
S
0’  
0’  
0’  
0’  
SSPIF  
FIGURE 18-28:  
BRG RESET DUE TO SDA ARBITRATION DURING START CONDITION  
SDA = 0, SCL = 1  
Set S  
Set SSPIF  
Less than TBRG  
TBRG  
SDA pulled low by other master.  
Reset BRG and assert SDA.  
SDA  
SCL  
S
SCL pulled low after BRG  
time-out  
SEN  
Set SEN, enable Start  
sequence if SDA = 1, SCL = 1  
0’  
BCLIF  
S
SSPIF  
Interrupts cleared  
in software  
SDA = 0, SCL = 1,  
set SSPIF  
2005 Microchip Technology Inc.  
DS39612B-page 209