Watchdog reset on AT89S53

Hi, Just wondering if anyone knows how I can distinquish between a power on reset and watchdog reset using a AT89S53 chip. Cheers, Andy
Watchdog reset on AT89S53

Hi, Just wondering if anyone knows how I can distinquish between a power on reset and watchdog reset using a AT89S53 chip. Cheers, Andy
Problems with Mon51 connection

I'm using keil c51 7.05 Problem is that uVision can connect to mon51 only in win98 environment. In win2000, or winxp it fails to connect. Does any body have solution? TIA!
Problems with Mon51 connection

I'm using keil c51 7.05 Problem is that uVision can connect to mon51 only in win98 environment. In win2000, or winxp it fails to connect. Does any body have solution? TIA!
Using AT89S53 for analog to digital conversion

Dear all, I am trying to convert analog signal to digital signal using AT89S53. But that chip seem haven't any A/D converter. My question is, can I convert analog signal to digital signal only using...