How many memory locations can a 16 bit processor access?

A 16-bit integer can store 216 (or 65,536) distinct values. In an unsigned representation, these values are the integers between 0 and 65,535; using two's complement, possible values range from −32,768 to 32,767. Hence, a processor with 16-bit memory addresses can directly access 64 KB of byte-addressable memory.

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Besides, how many memory locations can a 16 bit address bus access?

For example, a system with a 16-bit address bus can address 2^16 memory locations. If each memory location holds one byte (8 bits), the addressable memory space is 644 KB of memory.

Similarly, how can a 16 bit microprocessor generate 20 bit memory addresses? In order to access memory location, you cannot pass 20-bit address directly to the processor. You need to tell the 16-bit address with respect to the segment. This 16-bit address with respect to the part (segment of 64KB) of the memory bank is called the offset. So, Physical Address = Base Address + Offset.

Also to know is, what is the maximum memory address space that the processor can access directly if it is connected to a 16 bit memory?

The maximum memory address space for processor connected to a “16-bit memory” = 2 16 = 65536 = 64Kbytes.

How many bits are in a memory address?

32 bits

Related Question Answers

What is 16 bits called?

Each 1 or 0 in a binary number iscalled a bit. From there, a group of 4bits is called a nibble, and 8-bitsmakes a byte. Bytes are a pretty common buzzword when working in binary. It could be 16-bits, 32, 64, or even more.

What is the highest address written in binary?

For example, each address in the IBM 1620's magnetic-core memory identified a single six bit binary-coded decimal digit, consisting of a parity bit, flag bit and four numerical bits. The 1620 used 5-digit decimal addresses, so in theory the highest possible address was 99,999.

What is the number of address lines required for 1 MB memory?

16

What is the maximum value for a 16 bit number?

A 16-bit integer can store 216 (or 65,536) distinct values. In an unsigned representation, these values are the integers between 0 and 65,535; using two's complement, possible values range from −32,768 to 32,767.

What is the highest 16 bit number in binary?

The largest binary number that can be obtained with 16 bits is 1111111111111111 . Its decimal equivalent is 65535 .

What is the largest decimal value you can represent using a 16 bit unsigned integer?

65535

How many bits is a word?

16 bits

What characteristics distinguish the various elements of a memory hierarchy?

Q – 1.6 What characteristics distinguish the various elements of a memory hierarchy? there are three characteristics of memory are Namely, Capacity, Access time and Cost. They have high capacity, low cost per bit & slower access.

How many bits are needed for the program counter?

How many bits are needed for the program counter and the instruction register? c: The PC must be at least 24 bits. Typically, a 32-bit microprocessor will have a 32-bit external address bus and a 32-bit program counter, unless on-chip segment registers are used that may work with a smaller program counter.

How does the principle of locality relate to the use of multiple memory levels?

How does the principle of locality relate to the use of multiple memory levels? Slower and less expensive memory is used in higher stages, with the most expensive being the registers in the processor as well as cache. Main memory is slower and less expensive, and is outside of the processor.

How many bits should the instruction register contain if the instruction register is to contain only the opcode and how many if the instruction register is to contain the whole instruction?

The Instruction Register (IR) in a simple microprocessor is a simple register with enough bits for the address and opcode combined. For example, if the address requires 8 bits, and the opcode also requires 8 bits, then the Instruction Register needs to be 16 bits wide (8 + 8).

How physical address is generated?

So, Physical Address = Base Address + Offset. Suppose the Data Segment holds the Base Aaddress as 1000h and the data you need is present in the 0020h memory location (Offset) of the Data Segment. The calculation of the actual address is done as follows. So the actual address turns out to be 10020h.

How effective address is calculated?

In the Relative Addressing Mode, the Program Counter (PC) is the implicitly referenced register. So, the effective address is generated by adding the next instruction address to the the address field. Hence, Effective Address = 302 + 400 = 702.

What is offset address 8086?

The offset address in an 8086 is the logical address that the program "thinks about" when it addresses a location in memory. The Execution Unit (EU or CPU) is responsible for generating the offset address.

How are the segment registers used to form a 20 bit address?

A segment register changes the memory address accessed by 16 bits at a time, because its value is shifted left by 4 bits (or multiplied by 16) to cover the entire 20-bit address space. The segment register value is added to the addressing register's 16-bit value to produce the actual 20-bit memory address.

What is physical address in assembly language?

In computing, a physical address (also real address, or binary address), is a memory address that is represented in the form of a binary number on the address bus circuitry in order to enable the data bus to access a particular storage cell of main memory, or a register of memory mapped I/O device.

Why is memory segmentation done in 8086?

* Segmentation is used to increase the execution speed of computer system so that processor can able to fetch and execute the data from memory easily and fastly. 4. Segmentation in 8086 The size of address bus of 8086 is 20 and is able to address 1 Mbytes ( ) of physical memory.

Where is physical address in 8086?

This 16-bit address with respect to the part (segment of 64KB) of the memory bank is called the offset. So, Physical Address = Base Address + Offset. Suppose the Data Segment holds the Base Aaddress as 1000h and the data you need is present in the 0020h memory location (Offset) of the Data Segment.

What is offset address in assembly language?

In assembly language In computer engineering and low-level programming (such as assembly language), an offset usually denotes the number of address locations added to a base address in order to get to a specific absolute address. In this context an offset is sometimes called a relative address.

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