S3C84E5/C84E9/P84E9 8-BIT TIMER A/B
11-1
11 8-BIT TIMER A/B

8-BIT TIMER A

OVERVIEW
The 8-bit timer A is an 8-bit general-purpose timer/counter. Timer A has three operating modes, you can select one
of them using the appropriate TACON setting:
— Interval timer mode (Toggle output at TAOUT pin)
— Capture input mode with a rising or falling edge trigger at the TACAP pin
— PWM mode (TAPWM)
Timer A has the following functional components:
— Clock frequency divider (fxx divided by 1024, 256, or 64) with multiplexer
— External clock input pin (TACK)
— 8-bit counter (TACNT), 8-bit comparator, and 8-bit reference data register (TADATA)
— I/O pins for capture input (TACAP) or PWM or match output (TAOUT)
— Timer A overflow interrupt (IRQ1, vector C2H) and match/capture interrupt (IRQ1, vector C0H) generation
— Timer A control register, TACON (set 1, bank1, E1H, read/write)