Samsung user manual S3C84E5/C84E9/P84E9 BIT Timer 10,1, 12-1

S3C84E5/C84E9/P84E9 16-BIT TIMER 1(0,1)

12 16-BIT TIMER 1(0,1)

OVERVIEW

The S3C84E5/C84E9/P84E9 has two 16-bit timer/counters. The 16-bit timer 1(0,1) is an 16-bit general-purpose timer/counter. Timer 1(0,1) has three operating modes, one of which you select using the appropriate T1CON0, T1CON1 setting is

—Interval timer mode (Toggle output at T1OUT0, T1OUT1 pin)

—Capture input mode with a rising or falling edge trigger at the T1CAP0, T1CAP1 pin

—PWM mode (T1PWM0, T1PWM1); PWM output shares their output port with T1OUT0, T1OUT1 pin

Timer 1(0,1) has the following functional components:

—Clock frequency divider (fxx divided by 1024, 256, 64, 8, 1) with multiplexer

—External clock input pin (T1CK0, T1CK1)

—A 16-bit counter (T1CNTH0/L0, T1CNTH1/L1), a 16-bit comparator, and two 16-bit reference data register (T1DATAH0/L0, T1DATAH1/L1)

—I/O pins for capture input (T1CAP0, T1CAP1), or match output (T1OUT0, T1OUT1)

—Timer 1(0) overflow interrupt (IRQ2, vector C6H) and match/capture interrupt (IRQ2, vector C4H) generation

—Timer 1(1) overflow interrupt (IRQ2, vector CAH) and match/capture interrupt (IRQ2, vector C8H) generation

—Timer 1(0) control register, T1CON0 (set 1, E8H, Bank 1, read/write)

—Timer 1(1) control register, T1CON1 (set 1, E9H, Bank 1, read/write)

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