I have an eval version of keil.I wrote code for implementing the watchdog timer on the chip P8951rd2.When i tried to simulate it i found that this chip in the simulator does not give the options of pca timer .However the same code itried to simulate using p80c575 the code worked because it showed me the pca timer dialog box.i tried to run the same program on p89c51 chip that is actual hardware,but results were same as that of simulator.why is this happening.To program the watchdog i used the same technique given in the datasheet of p89c51rd2.
kindly help.