How Traffic light controller is interfaced with 8086?

in the form of a T-section to control the traffic of that road. Each road is named North (N), South(S), East (E) and West (W). LED’s L1, L10, L19 & L28 (Red) are for the stop signal for the vehicles on the road N, S, W, & E respectively.

What is traffic light interface?

In this project, the traffic lights are interfaced to Microprocessor system through buffer and ports of programmable peripheral Interface 8255. So the traffic lights can be automatically switched ON/OFF in desired sequence. The LED’s can be switched ON/OFF in the specified sequence by the Microprocessor.

What are the different transfer techniques Intel 8086 88 microprocessor?

Instructions to transfer flag registers LAHF − Used to load AH with the low byte of the flag register. SAHF − Used to store AH register to low byte of the flag register. PUSHF − Used to copy the flag register at the top of the stack. POPF − Used to copy a word at the top of the stack to the flag register.

How many data lines are there in 8086?

16-line
The 8086 uses 20-line address bus. It has a 16-line data bus. The 20 lines of the address bus operate in multiplexed mode.

What voltage is a traffic light?

The traffic signal power supply is an electrical device in the control cabinet that converts AC to correct DC voltages for various devices in the traffic signal cabinet. The nominal voltage of the power supply is 24VDC.

How to design a microprocessor system to control traffic lights?

Designing a microprocessor system to control traffic lights is discussed in this post. The traffic light arrangement is as shown in the figure. The trffic should be controlled in the following manner. Allow traffic from W to E and E to W transition for 20 seconds. Allow traffic from N to S and S to N for 20 seconds.

What are the features of 8086 microprocessor?

8086 has 16-bit address lines to access I/O devices. Pipelining:- It uses two stage of pipelining. Operates in two modes. 8086 uses memory banks. Interrupts. Multiplication And Division. Operating modes. Minimum Mode: In this mode, there is only one processor in the system. Maximum Mode: In this mode, there are multiple processors in the system.

What is tratraffic controller interface module?

Traffic light controller interface module is designed to simulate the function of four way traffic light controller. Traffic light controller interface module is designed to simulate the function of four way traffic light controller. Combinations of red, amber and green LED’s are provided to indicate Halt, Wait and Go

Which pins are used to control the lights on the road?

Port A is used to ontrol lights on N-S road and port B is used to control lights on W-E road. Actual pin connections are listed in table below. The electric bulbs are controlled by relays. The 8255 pins are used to control relay on-off action with the help of relay diver circuits. The driver circuit includes 12 transitors to drive 12 relays.