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Q: Which signal is used to multiplex address and data lines?
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What do you mean by AD bus in microprocessor?

ad is multiplex address data line bus


Why all the 16 address lines are not act as a data lines in 8085 microprocessor?

the 8085 microprocessor is a 8-bit microprocessor and these are bidirectional but the address lines are unidirectional.these address lines are used to address the location of the instruction in memory .these data lines are used to transfer data between processor and peripheral devices. when the address of the instruction will be recognized by the address lines the data will be send to the processor therefore the 16 address lines are not act as a data lines in 8085


How many Address lines and data lines of microprocessor and microcontroller?

Microprocessor has 16 address lines and microcontroller has 20 address lines


List briefly define the functional groups of signal lines for PCI?

Data Lines: Carry the actual data transmitted between components. Address Lines: Specify the memory address for data storage or retrieval. Control Lines: Manage the flow of data within the system by indicating when data is being transferred or when a specific operation is required. Clock Lines: Synchronize the timing of operations within the system to ensure data is transmitted and received at the correct times.


How many address lines and data lines are required for a2Kx8 memory?

A 2K X 8 memory requires 11 address lines and 8 data lines


How many address lines and data lines are required for a 128k x 8 memory system?

17 address lines and 8 data lines. 2^17=128k


How many address lines and data lines there in 8051?

12


What are the basics of microprocessor?

1)address lines to refer to the address of a block 2)data lines for data transfer 3)IC chips 4 processing data


What is memory read in intel 8085 microprocessor?

Memory Read refers to the process when 1) HL pair holds the address which is to be read 2) this address is placed on address lines (ALE : Address Latch Enable, must be high at this moment) 3) then Memory Read Control Signal (MEMR) goes high to signify that at this moment we need to read (get) data from memory. 4) Then ALE goes low and data is placed on lower bit address lines ( Because data lines are multiplexed with lower byte address line) 5) After getting the data in the register, ALE again goes High, MEMR goes low.


What is ALE in 8086 in microprocessor?

ALE is a signal that means that the data bus contains the lower order address bus values. External hardware should strobe the data bus during ALE time, and lock it on the falling edge of ALE.


6 List and briefly define the functional group s for PCI of signal line?

System pins: Include the clock and reset pins. Address and data pins: Include 32 lines that are time multiplexed for addresses and data. Interface control pins: Control the timing of transactions and provide coordination among initiators and targets. Arbitration pins: Unlike the other PCI signal lines, these are not shared lines. Rather, each PCI master has its own pair of arbitration lines that connect it directly to the PCI bus arbiter. Error Reporting pins: Used to report parity and other errors. Interrupt Pins: These are provided for PCI devices that must generate requests for service. Cache support pins: These pins are needed to support a memory on PCI that can be cached in the processor or another device. 64-bit Bus extension pins: Include 32 lines that are time multiplexed for addresses and data and that are combined with the mandatory address/data lines to form a 64-bit address/data bus. JTAG/Boundary Scan Pins: These signal lines support testing procedures defined in IEEE Standard 1149.1.


What is the basic construction of microprocessor?

1)address lines to refer to the address of a block 2)data lines for data transfer 3)IC chips 4 processing data