What does the 3 bytes represents in the three byte instructions?
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What does the 3 bytes represents in the three byte instructions?
Three-byte instructions – Three-byte instruction is the type of instruction in which the first 8 bits indicates the opcode and the next two bytes specify the 16-bit address. The low-order address is represented in second byte and the high-order address is represented in the third byte.
How many memory address can be connected to 8085 directly?
The microprocessor 8085 can transfer maximum 16 bit address which means it can address 65, 536 different memory location. The Length of the address bus determines the amount of memory a system can address. Such as a system with a 32-bit address bus can address 2^32 memory locations.
Can we store a 16-bit number in a memory location in 8085?
The 16-bit numbers are stored into memory location 8001H onwards. The value of N is stored at location 8000H. After addition, the result will be stored at location 8050H onwards. In 8085 we have few number of registers.
Which is 3 byte instruction of 8085?
In a 3-byte instruction, the first byte specifies the opcode, and the following two bytes specify the 16-bit address. The 2nd byte holds the low order address. The 3rd-byte holds the high order address. Instructions require three memory locations to store the single byte in the memory.
Which of the following is a 3 byte instruction Mcq?
Discussion Forum
| Que. | In a 3 byte instruction of 8085, the first, second and third byte respectively indicate |
|---|---|
| b. | low order byte of data / address, high order byte of data / address and operation code |
| c. | high order byte of data / address, low order byte of data / address and operation code |
How many address and data lines are present in 8085?
16 address line
Intel 8085 is an 8-bit microprocessor which has 16 address line for 16-bit address of a memory location. 8 higher order address bits are transferred through 8 bit lines out of this 16 address line while remaining lower order 8 bits of the address are sent through another 8 lines multiplexed with the 8-bit data lines.
How much memory in terms of bytes can be interfaced with the 8085 Why?
8085 has 16 address lines (A0 – A15), hence a maximum of 64 KB (= 216 bytes) of memory locations can be interfaced with it. The memory address space of the 8085 takes values from 0000H to FFFFH.
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