MICROPROCESSOR AND MICROCONTROLLER

MEMORY ORGANIZATION IN 8051

ARCHITECTURE OF 8085

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If
A
Both internal and external memory can be used
B
Only internal memory is used
C
only external memory is used
D
None of the above
Explanation: 

Detailed explanation-1: -While Internal RAM is limited to 128 bytes (256 bytes with an 8052), the 8051 supports External RAM up to 64K. Programming Tip: The 8051 may only address 64k of RAM. To expand RAM beyond this limit requires programming and hardware tricks.

Detailed explanation-2: -For this scenario, the EA Pin must be connected to GND. In this case, the memory addresses of the external ROM will be from 0000H to FFFFH.

There is 1 question to complete.