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What is the use of ale in 8085 microprocessor?
ALE (Address Enable Latch) is the control signal which is nothing but a positive going pulse generated when a new operation is started by microprocessor. So when pulse goes high means ALE=1, it makes address bus enable and when ALE=0, means low pulse makes data bus enable.
What is the function of ALE signal in 8051 microcontroller?
Pin 30 (ALE/ PROG) – ALE stands for Address Latch Enable. It is input, active-high pin. This pin is used to distinguish between memory chips when multiple memory chips are used. It is also used to de-multiplex the multiplexed address and data signals available at port 0.
How many I O ports can 8085 access?
256 input
The 8085 supports up to 256 input/output (I/O) ports, accessed via dedicated Input/Output instructions—taking port addresses as operands.
What is the difference between 8085 and 8086?
The 8086 is enhanced version of 8085 microprocessor. It is 16-bit processor….Differences between 8085 and 8086 microprocessor.
| Property | 8085 Microprocessor | 8086 Microprocessor |
|---|---|---|
| Number of transistors | Nearly 6500 | Nearly 29000 |
| Processor type | Accumulator based | General Purpose register based |
| Presence of Minimum and Maximum mode | Not present | Present |
How many address lines are there in 8085 microprocessor?
16 bit address lines
The microprocessor 8085 has 16 bit address lines from A15-A8 and AD7-AD0. These lines are used to transfer 16 bit address of memory as well as 8-bit address of I/O ports.
What is aleale in 8085?
ALE means Address Latch Enable. separate the data bus and address bus. bus and (D0-D7) bus. Is This Answer Correct? What is ALE? Explain the functions of ALE in 8085… address latch enable is an output pulse for latching the low byte of the address during access to external memory.
What is the function of ale in 8085 microprocessor?
Answer / hiranmay mistri. ALE is a control signal of 8085 MPU.8085 is a 8-bit. microprocessor which have 16-bit address bus among them. lower 8-bit are multiplexed.So while MPU executes read or. write operation it needs to demultiplexed.ALE control signal. used to demultiplexed the lower order address and data bus.
What is Address Latch Enable (ale) in 8085?
8085 has a 16-bit address bus and 8 bit data bus. Hence , we need 16 lines for address and 8 for data. Therefore we have to demultiplex these AD0 to AD7 pins to use them as address and data pins both. Here comes ALE in rescue. Address Latch Enable (ALE) becomes high for first T state of every machine cycle and enables the address latch .
What is Alale control signal of 8085 Mpu?
ALE is a control signal of 8085 MPU.8085 is a 8-bit microprocessor which have 16-bit address bus among them lower 8-bit are multiplexed.So while MPU executes read or write operation it needs to demultiplexed.ALE control signal used to demultiplexed the lower order address and data bus.