Samsung S5PC100 User Manual page 579

PULSE WIDTH MODULATION TIMER
The Figure 7.1-1 shows a simple example of a PWM cycle.
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TOUTn
1. Initialize TCNTBn with 159(50+109) and TCMPBn with 109.
2. Start Timer: Set the start bit and manual update bit to off.
The TCNTBn value of 159 is loaded into the down-counter, the output is driven low.
3. If down-counter counts down to value in the TCMPBn register 109, the output changes from low to high
4. If the down-counter reaches 0, it generates interrupt request.
5. The down-counter automatically reloads with TCNTBn. This restarts the cycle.
7.1-2
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50
Figure 7.1-1 Simple Example of PWM Cycle
S5PC100 USER'S MANUAL (REV1.0)
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110
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