Page 234 - Making PIC Microcontroller Instruments and Controllers

time (always beforc it runs out) in the prcgam to keep this ftom happenitg. The code
for rcsetting the timer is provided by the compiler automatically. Check the appropri-
ate option in the Fogramming options.
The watchdog timer shares its prescalar with Timero on an exclusive basis, meaning
that either the watchdog timer or Timero can use the prescalar (but IIot both). When you
sel€ct the watchdog timer, the prcscalar for Timero goes to 1:1. In fact, you select 1:1
for Thnero by setting bit 3 ir the option rcgister, which at the same time assigns the
prescalar to the watchdog timer