PRELIMINARY
Pulse Width Modulation Timer
S3C6400 RISC MICROPROCESSOR
32-2
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
1
2
4
3
5
TOUTn
110
50
Figure 32-1: Simple Example of PWM Cycle Block Diagram
1. Initialize the TCNTBn with 160(50+110) and the TCMPBn with 110.
2. Start Timer by setting the start bit and manual update bit off.
The TCNTBn value of 160 is loaded into the down-counter, the output is driven low.
3. When down-counter counts down to the value in the TCMPBn register (110),
the output is changed from low to high
4. When the down-counter reaches 0, the interrupt request is generated.
5. At the same time the down-counter is automatically reloaded with TCNTBn, which restarts the cycle.