• More external memory than 64k
    Hello. I am curious why there is a limitation of 64k on the C251 compiler, when the device can handle up to 256k? Is there a way around this?
  • how we are going access both 64k data memory and 64k code memory using 16 address lines in 8051
    Hai, I have a doubt on 8051 micro-controller, i.e for 8051 micro-controller max code memory will be 64k and max data memory is 64k.So how we are going access this both 64k memory of code memory and...
  • accessing external data and program memory
    Whenever ,an external data memory is accessed, by using DPTR, the corresponding DPL and DPH values has to be appear in the Low order address bus (PO) and high order address Bus(P2). As per the following...
  • 64k External NVSRAM + External IO
    Dear all, Please anyone can help me? Currenlty i have x2 32kB SRAM for data and code. I would like to add more External-IO port for my board. How can i connect the circuit? I have no problem...
  • How to enlarge 64k data memory to 128k data memory on 8051 ?
    Dear, How to enlarge 64k data memory to 128k data memory on 8051 ? Best Regards, Jimmy