Micro-processor – i/o interfacing overview – tutorialspoint
Contents
- IO Interfacing
- Block Diagram of Memory and that iOrTo Interfacing
- 8085 Interfacing Pins
- IO Interfacing
- Block Diagram of Memory and that iOrTo Interfacing
- 8085 Interfacing Pins
- Methods for Communication − Micro-processor using the Outdoors World?
If we are executing any instruction, we want the micro-processor to gain access to the memory for studying instruction codes and also the data kept in the memory. With this, both memory and also the micro-processor requires some signals to see from and email registers.
The interfacing process includes some important aspects to complement using the memory needs and micro-processor signals. The interfacing circuit therefore ought to be designed in a way it matches the memory signal needs using the signals from the micro-processor.
IO Interfacing
There are numerous communication devices such as the keyboard, mouse, printer, etc. So, we have to interface the laptop keyboard along with other devices using the micro-processor by utilizing latches and buffers. This kind of interfacing is called I/O interfacing.
Block Diagram of Memory and that iOrTo Interfacing
8085 Interfacing Pins
If we are executing any instruction, we want the micro-processor to gain access to the memory for studying instruction codes and also the data kept in the memory. With this, both memory and also the micro-processor requires some signals to see from and email registers.
The interfacing process includes some important aspects to complement using the memory needs and micro-processor signals. The interfacing circuit therefore ought to be designed in a way it matches the memory signal needs using the signals from the micro-processor.
IO Interfacing
There are numerous communication devices such as the keyboard, mouse, printer, etc. So, we have to interface the laptop keyboard along with other devices using the micro-processor by utilizing latches and buffers. This kind of interfacing is called I/O interfacing.
Block Diagram of Memory and that iOrTo Interfacing
8085 Interfacing Pins
Following may be the listing of 8085 pins employed for interfacing along with other devices −
- A15 – A8 (Greater Address Bus)
- AD7 – AD0(Lower Address/Data Bus)
- ALE
- RD
- WR
- READY
Methods for Communication − Micro-processor using the Outdoors World?
There’s two methods for communication where the micro-processor can interact with the outdoors world.
- Serial Communication Interface
- Parallel Communication interface
Serial Communication Interface − In this kind of communication, the interface will get just one byte of information in the micro-processor and transmits it piece by piece to another system serially and vice-a-versa.
Parallel Communication Interface − In this kind of communication, the interface will get a byte of information in the micro-processor and transmits it piece by piece to another systems in synchronised (or) parallel fashion and vice-a-versa.
Resourse: https://tutorialspoint.com/micro-processor/
