• on-chip xram
    hello everyone, i am quite new to programming 8051..hoping to receive some help.. i have a pointer variable.The address stored in this variable resides in the on-chip XRAM. unsigned char xdata...
  • W77IE58 On Chip XRAM Problem
    Hi All, I am using Winbond W77IE58 chip. When i am using xdata variable as global variable, i am getting some junk data. (i.e) I have declared a char array unsigned char xdata test[] = "TEST CHARACTERS...
  • On-Chip XRAM Usage Problem
    Hello, We have an application running on DS89C450. We link the compiled objects by means of LX51 advanced linker and 'Linker Code Packing' of the linker is enabled with the optimization level of...
  • ERAM and P2
    I am going to use the Philips P89C668 which has 64k flash and 8k ERAM. This allow me to use P0 and P2 for I/O since no external memory chip will be connected. However, if the compiler generates code using...
  • accessing eram
    I would like to know know how to access the eram in the MCU at89c5131?