• i2c interface 89c669
    Does the Cx51 compiler support I2C operations such as addressing external RAM for XDATA fetches? Or, do you still have to have the standard RAM (address lines) if you require excess XDATA space (more...
  • UART in 89C669
    89C669 IC has dual UART . How do I refer the individual UARTs using a C Program...
  • uart1 in 89c669
    Hi, i'm using P89c669, but uart 1 is not working in my board. Is my settings correct? settings = 9600,8,n,1. IEN1 = 0X01; S1CON = 0X50; S1STAT = 0X20; BRGCON = 0; BRGR1 = 0X07; BRGR0 = 0X70;...
  • philips 89c669
    we r using philips 89c669 ,in design we r using DS1232 to provide reset to 89C669. Reset doesnt come up most of the time. Is this problem of microcontroller?
  • Where to find I2C c examples for philips 89c669
    Hi! Can anybody tell me where i can find some i2c examples for philips 89c669.I have some examples for 89c668.But I still can not run it in my 89c669 system. I change my rtxconf.a51(make a new type...