What is the function of ALE in 8085 ?

In 8085 there is one common bus for data memory as well as program memory.  
ale is used to select the bus as address and data bus

uses bus as address and data bus 

Address Latch Enable is used for multiplexing higher order address bus and the data bus

used to acess external memory.

also used in 8051 and compatible microcontrollers

ALE controls the set of latches or flipflops in 8085

hi, i think it is ALU. and it is arithmetic logical unit, which is used by processor to compute many arithmetic & logical function by it. a part of processor.

Address latch enable: This is a positine going pulse generated every time the 8085 begins an operation(machine cycle);it indicates that the bits on AD7-ADo are address bits.This signal is used primarily to latch the low -order address from multiplexed bus and generate a separate set of eight address lines,A7-Ao.

ALE is an active high pin. When we supplied active high pulse to this pin, this pin is activated. When this pin is activated, it de-multiplexes lower address bus (A0-A7) from lower address / data bus (AD0-AD7).

ALE( Address Latch Enable)

this is a signal which goes HIGH everytime 8085 begins an operation. it indicates that the bits on AD0 to AD7 are address bits.

this signal is mainly used to latch the low order address from the multiplexed bus.

ALE stands for Address Latch Enable. It is the 3oth pin of 8085 which is used to enable or disable the address bus. the address bus will be enabled during the 1st clock cycle as the ALE pin goes high i.,e logic '1' during the first half cycle. During 2nd and 3rd clock cycles it goes low i.,e logic '0' indicating the the address & data bus (AD0-AD7) is for data. hence it disables the address & data bus during the 2nd and 3rd clock cycles.

Address latch enable is used for combining lower order address byte to higher order address byte

LIFO