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Discuss mode -2 (bi-directional mode) of 8255 (Programmable Peripheral Interface).
Only permitted with port A. Bi-directional bus data used for interfacing two computers and GPIB interface.
INTR: Interrupt request is outputs which requests and interrupt
: output buffer is an output showing that the output buffer has data for the bi-directional bus.
: Acknowledge is an input and output which enables tri-state buffers that an otherwise in their high- impedence.
: The strobe input load data in the port A latch.
IFB: Input buffer full is an output showing that the input latch has information for the eternal bi-directional bus.
INTE: Interrupt enable are internal bits which enable the INTR pin. Bit PC6(INTE1) and PC4(INTE2).
PC2,PC1: Such port C pins are general- purpose I/O pins which are PC0 obtainable for any reasons.
Transistor Switching Circuit Design a) Sketchy a schematic diagram showing how a transistor can be used to control the operation of a relay b) Determine what is meant by ba
1. For the following network: a. Find the differential equation assuming that v ( t ) is the input and the charge on the capacitor q ( t ) is the output. Hints: i R1= ( i R2
A rifle with a mass of 3,5 kg fires a bullei with a mass of 120 g with a muzzle velocity of 420 mls. Calculate the following: 1.4.''l The momentum before the rifle was fired ''1.4.
Consider the arrangement shown in Figure. A conductor bar of length l is free to move along a pair of conducting rails. The bar is driven by an external force at a constant velocit
OUT Output Instruction This instruction is used send data byte stored in the accumulator to the output port whose address specified in the instruction. The instruction
a. Explain State Transition Diagram and define the various SDL symbols used in state transition diagram. b. Draw the signal exchange diagram for a local call used to show the se
Normal 0 false false false EN-IN X-NONE X-NONE
Q. When the J and K inputs of a JKFF are tied to logic 1, this device is known as a divide-by-2 counter. Complete the timing diagram shown in Figure for this counter.
Using the LM741operational amplifier build a current amplifier with the voltage gain of |A V | = 300 v/v ± = 20% . Measure all necessary parameters of the amplifier (as per delive
Multitasking - Single Processor Many Users Many Tasks In multitasking or also called time sharing systems multi user more than one users are sharing one processor
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