3 Answers. One address addresses one byte. Using 16 bits, you can write
65536 addresses
(from 0 to 65535, that’s 65536 different addresses), and address 65536 bytes.
How many memory locations can be addressed with address bus of 16 bits?
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.
How much memory can 16 bits address?
A 16-bit integer can store 2
16
(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.
What is the maximum amount of data that can pass down a 16-bit address bus?
The answer is
64 KB
. You can address 2^16 words and each word is 8 bit (= 1 byte). Therefore it is 64 KB. If the word size was 16 bit.
What does 16-bit address bus mean?
Microprocessor and Memory Basics
In many older computers, the address bus was 16 bits wide (a = 16). This meant
that there were 16 wires
. Such microprocessors could address up to 2
16
= 65536 memory locations. By increasing the width of the address bus, more memory locations can be directly addressed.
How many locations can be selected by 16 address lines?
Using 16 bits, you can write
65536 addresses
(from 0 to 65535, that’s 65536 different addresses), and address 65536 bytes.
What are 16 bits called?
uint16_t
– 16 bits, unsigned. uint32_t – 32 bits, unsigned. uint64_t – 64 bits, unsigned.
How many words a 16 * 8 memory can store?
On the other hand, if we assume word addressing with a 16 bit word, then 8 bit addresses will address
256 words
… which is 512 bytes. The base answer is the 2^number of bits.
Which register is 16-bit?
Memory Registers There are two 16-bit registers used to hold memory addresses. The size of these registers is 16 bits because the memory addresses are 16 bits. They are:
Program Counter
This register is used to sequence the execution of the instructions.
How many unique addresses would be required to access 2 to the 16 memory cells?
So 2 to the power of 16 is
65,536
, commonly referred to as 64K. The number of memory words addressed on a bus is 2 to the power of the width of the address bus, in this case 16. So 2 to the power of 16 is 65,536, commonly referred to as 64K.
What is the maximum memory address space that the processor can access directly if it is connected to a 16 bit memory?
The microprocessor can access
216=65536 memory addresses
, regardless of the size of data held at each memory address. If each memory address holds one byte (8 bits) of data then the total memory size that can be addressed directly is 216 bytes, which is 26 KiB=64 KiB.
What is bus speed?
The term “bus speed” refers to
how quickly the system bus can move data from one computer component to the other
. The faster the bus, the more data it can move within a given amount of time.
What are the 3 types of buses?
- Address bus – carries memory addresses from the processor to other components such as primary storage and input/output devices. …
- Data bus – carries the data between the processor and other components. …
- Control bus – carries control signals from the processor to other components.
How can a 16-bit microprocessor generate 20 bit memory address?
To generate the 20-bit address,
the CPU shifts the segment 4 bits (1 hex digit) to the left and adds the offset to it
. A common combination for segment and offset is the CS and IP registers: together they indicate the address of the next instruction.
What will be the size of memory address space for a 16-bit data and 20 bit address bus?
So in the example of a 16-bit memory bus, there would be
64 kilobytes
of memory. The 8088 actually had a 20-bit memory address bus, which yielded 1 megabyte of addressable space.
What is the largest 16-bit binary number that can be represented with?
There are 65,536 different unsigned 16-bit numbers. The smallest unsigned 16-bit number is 0 and the largest is
65535
.
