• XDATA for SILabs internal xdata EMI0cn
    how do I specify in C that xdata access is to use EMI0CN instead of P2 for high byte of address xdata access
  • Xdata
    Hi Can someone tell me how does XDATA works? I got the code below but i do not understand how can a simple code like #define Port_D XBYTE [0xFFA0], define Port D and what input or output goes to which...
  • XDATA
    #include <REG668.H> #define on_XRAM() AUXR = 0x01 #define off_XRAM() AUXR = 0x02 sbit Led_Bit = P2^4; void delay(unsigned long us) { off_XRAM(); while (--us > 0); on_XRAM(); } void...
  • run code from xdata (internal ram)
    I want to run a short function from internal xdata! I use the DS80C390, I use the configuration with my internal xdata on 00F000h–00FFFFh and no external xdata. I have 128k code space. IDM =...
  • The internal expanded RAM(XDATA) on AT89C51RB2 cannot be used
    Hello everybody, I am testing a program for AT89S54(AT89C51RB2) with uVision2.As you konwn,this chip has 768 bytes expanded RAM(XRAM).I want to use the XRAM for my program,but the XRAM space cannot be...