8086 Microprocessor is an enhanced version of 8085Microprocessor that was designed by Intel in 1976. It is a 16-bit Microprocessor having
20 address lines and16 data lines
that provides up to 1MB storage.
How many address lines are in 8086?
The 8086 uses
20
-line address bus. It has a 16-line data bus. The 20 lines of the address bus operate in multiplexed mode.
How many address lines are there in microprocessor?
A microprocessor has a
32-bit address line
. The size of the memory contents of each address is 8 bits.
How many address lines are required for 8kB?
It is an 8kB and his question uses a 32kB RAM. Both simply have 8k of addressable words and therefore need
13 address lines
.
What is address lines and data lines in microprocessor?
An address line usually refers
to a physical connection between a CPU/chipset and memory
. They specify which address to access in the memory. So the task is to find out how many bits are required to pass the input number as an address. In your example, the input is 2 kilobytes = 2048 = 2^11, hence the answer 11.
What are the 2 modes of 8086?
8086 is designed to operate in two modes,
Minimum and Maximum
. It can prefetches upto 6 instruction bytes from memory and queues them in order to speed up instruction execution.
What is the meaning of address Line 1 and address Line 2?
Address line 1 should contain the primary address information and secondary address information (e.g., floor, suite or mail stop number) on one line.
Address line 2 should contain the building/dorm or school name
.
How do you calculate address lines needed?
If n=2, you can address 2 locations (0, 1, 2, and 3). As you can see, number of addressable locations
= n^2
. This means that n=log(1024) to the base 2. Thus, n=10.
How many address lines are required for 1MB memory?
“
20”
address lines or address bus are required to span “1MB” memory space.
What is the difference between address lines and data lines?
While the data lines convey bits from one device to another, control lines determine the direction of data flow, and when each device can access the bus.
Address lines determine the location of the source or destination of the data
.
What are different types of buses?
- Coach / Motor coach.
- School bus.
- Shuttle bus.
- Minibus.
- Minicoach.
- Double-decker bus.
- Single-decker bus.
- Low-floor bus.
Why do we need address lines?
It is
used to transfer data between devices
. The devices are identified by the hardware address of the physical memory (the physical address). The address is stored in the form of binary numbers to enable the data bus to access memory storage.
What is maximum and minimum mode in microprocessor?
| Minimum mode Maximum mode | ALE for the latch is given by 8086 as it is the only processor in the circuit. ALE for the latch is given by 8288 bus controller as there can be multiple processors in the circuit. |
|---|
What is the maximum mode of 8086?
In this we can connect more processors to 8086 (8087/8089). 8086 max mode is basically for
implementation of allocation of global resources and passing bus control to
other coprocessor(i.e. second processor in the system), because two processors can not access system bus at same instant.
Which port can be split into two parts?
Port B is similar to PORT A.
Port C
can be split into two parts, i.e. PORT C lower (PC0-PC3) and PORT C upper (PC7-PC4) by the control word.
