• P89c669
    hi, I would like to program with philips 89c669 MX51 architecture. I have keil uvision2 V2.14 . This particular chip is not present in the device list. But keil version supports MX51 architecutre...
  • P89C669
    Does (or when will) Keil support the P89C669 ? Alternately if the MX is supported (long address - no bank switching) can that be used with a 'homemade' sfr definition file for the 669? Erik
  • P89C669 configurations
    I am using P89C669 controller. What are the configuration i have to set in uvision to use off-chip xdata of 64KB and to disable on chip xram?
  • P89C669 & I2C
    P89C669 user manual page 71 indicate I2CON (91h) is bit addressable.! How can declare to compiler? My custom header file for P89C669 ; sfr I2CON = 0x91; sbit I2EN = I2CON^6; sbit STA = I2CON...
  • IAP Programming
    Hi all I have to add an In-Application Programming feature to my program. I'm using 89c51rc2 with no external memory and keil. I've read several threads about IAP but not found exactly the thing...