The 8251 USART is typically used for serial communication and was rated for 19.2 Kilo bits per second signalling rate.It is commonly confused with the much more common 8250 UART that was made popular as the serial port in the IBM Personal Computer.
It has 5 sections:
read/write control logic
transmitter
receiver
data bus system
modem control
Contents of ppt:
INTRODUCTION
SYNCHRONOUS COMMUNICATION
ASYNCHRONOUS COMMUNICATION
BLOCK DIAGRAM
TRANSMITTER
RECEIVER
PIN DIAGRAM
PIN DESCRIPTION
APPLICATIONS
PPT:
Related posts:Ppt on proximity
Showing posts with label PPT. Show all posts
Showing posts with label PPT. Show all posts
7 March 2015
8 February 2015
25 January 2015
Ppt on proximity sensors
Proximity Sensors:
Proximity sensors are devices that are able to detect the objects without any actual contact with them.Almost in all the cases a plate of glass or plastic separates them.Although you are likely to touch the separating element,but there is no physical contact with the sensor.
This technology also enables adaptive controls, alleviates isolation issues, improves overall application, robustness , generates almost unlimited design flexibility and fosters new functionalities.
Types of proximity sensors:
Capacitive
Capacitive displacement sensor
Doppler effect (sensor based on effect)
Eddy-current
Inductive
Laser range finder
Magnetic, including Magnetic proximity fuse
Passive optical (such as charge-coupled d
