S3C825A Datasheet, PDF (249/346 Pages) Samsung semiconductor – 8-BIT CMOS MICROCONTROLLERS

S3C825A/P825A
BASIC TIMER and TIMER 0
10 BASIC TIMER and TIMER 0
OVERVIEW
The S3C825A has two default timers: an 8-bit basic timer and one 8-bit general-purpose timer/counter. The 8-bit
timer/counter is called timer 0.
BASIC TIMER (BT)
You can use the basic timer (BT) in two different ways:
— As a watchdog timer to provide an automatic reset mechanism in the event of a system malfunction.
— To signal the end of the required oscillation stabilization interval after a reset or a stop mode release.
The functional components of the basic timer block are:
— Clock frequency divider (fxx divided by 4096, 1024, 128, or 16) with multiplexer
— 8-bit basic timer counter, BTCNT (set 1, bank 0, FDH, read-only)
— Basic timer control register, BTCON (set 1, D3H, read/write)
10-1