Intel 8085

TRAP is a non maskable interrupt pin in 8085.....it has the highest priority out of all the interrupts...it is used in emergency n critical states..ex.during power loss etc.

The processor stops and goes to the halt state. If an interrupt occurs, it responds and then continues execution.

addressing mode is used to form an instruction format.

You find the two's complement of 00H the same way you find it for any other number. You complement the bits and then you add 1. In the case of 00H, this results in 00H. That is no surprise, because -0 is the same as +0, and two's complement representation was chosen to do just that, as well as to make the physical addition of signed and unsigned numbers to be the same.

Not necessarily. In the 8085, for instance, this is true. In the 8088, however, the processor is a 16 bit processor with an 8 bit data bus. The same is true for the 80386sx - it is a 32 bit processor on a 16 bit bus.

hey if its in the context of strings we can use string manipulation functions like strcpy(). in microprocessors we use rep movsb to move data from one memory location to other.

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The need for a timing diagram for a microprocessor is, primarily, to allow you to properly design the interface logic that will support the microprocessor.

You need to know what lines are used to execute various data transfers, what are the timing of those lines with respect to each other, and how the microprocessor expects the external logic to behave.

You can also use the timing diagram to understand how the microprocessor functions and, particularly, to know how long each instruction will take.

The 8085 instruction set is classified into the following three groups according to

word size:

1. One-word or 1-byte instructions

2. Two-word or 2-byte instructions

3. Three-word or 3-byte instructions

The only way to exit WAIT state on the 8085 is to assert READY. You could perform a reset, but the processor will still remain in TWAIT if READY is not true.

Maskable Interrupt

Summary − So this instruction XCHG requires 1-Byte, 4-Machine Cycles (Opcode Fetch) and 4 T-States for execution as shown in the timing diagram.

DI, EI, RIM, and SIM.

we want relay interface with 8085 and also attech the program

information about reserving blood products for surgery.taking or discontinuing medications before the surgery.eating and drinking before surgery.limiting activities before surgery.preparing items to bring to the hospital the day of surgery.

2^14 memory locations. In general for n-bit address bus, its 2^n

All V8 engines have the same firing order. 1,3,5,7 is the left bank, 2,4,6,8 is the right bank and the distributor rotates clockwise. 1,8,4,3,6,5,7,2

That is with you sitting in the drivers seat / Left and Right.

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The control and high order address buses are unidirectional.

The 8085 microprocessor has an 8-bit flag register, even though it only has 5 flags, because all of the registers in the 8085 are 8-bit or 16-bit. In fact, the flags register is considered to be part of the accumulator, as one "register pair", for purposes of stack push/pop and interrupt call/return.

Be warned, however, that you should not attempt to change the state of bits stored on the stack and then pop'ing them into AF, because some of the three "unused" bits might be undocumented but actually used, or their meaning might change between different versions of the chip.

The 8085 is an 8-bit computer, therefore the length of the general registers B, C, D, E, H, and L is 8 bits. Some registers, however, can be paired, specifically BC, DE, and HL, to hold and use 16 bit values for certain operations.

1.ground 2.supply voltage 3.relay driver 4.c1 oscillator 5.r1 oscillator 6.supply voltsge 7.lamp failure detection 8.start input

Bus cycle is a single transaction between the main memory and the CPU.

Step 1: Open drivers door and leave open.

Step 2: Lock and unlock the drivers door using the power door lock switch on the door.

Step 3: Insert key into the ignition.

Step 4: Turn key to on position and return to off position. (IMPORTANT - use ON position NOT ACC position). Do this 3 times within 10 seconds. Leave key in the ignition.

Step 5: Open and close the drivers door 3 times. (Door should be left open after this step). *Instead of opening/closing door 3 times, you can press the button in door jam. The car will think you're opening and closing door but much easier!

Step 6: ECU should respond by locking and unlocking the doors.

Step 7: Press any button on remote #1 twice. ECU responds by locking and unlocking the car doors.

Step 8: Press any button on remote #2 twice (etc.) Each time the ECU will respond by locking & unlocking the doors.

Step 9: Remove the key from the ignition and the ECU will respond a final time with a series of door locks and unlocks. You're done!

In the majority of US states a judgment holder can execute a judgment in several ways. The preferred method is wage garnishment, other options for the judgment creditor would be; bank account levy or seizure and sale of unexempt personal property or a lien against real property owned by the judgment debtor.