Samsung S3C6400X User Manual page 1031

Pulse Width Modulation Timer
The auto-reload is the operation, which copies the TCNTBn into TCNTn when TCNTn reaches 0. The value,
written into TCNTBn, is loaded to TCNTn only when the TCNTn reaches to 0 and auto-reload is enabled. If the
TCNTn is 0 and the auto-reload bit is 0, the TCNTn does not operate further.
Write
TCNTBn=100
Start
TCNTBn=150
auto_reload
interrupt
Figure 32-6: Example of Double Buffering Feature Block Diagram
32-8
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.
150 100
Write
TCNTBn=200
100
If TCNT is 0, interrupt signal is
generated and then load the next TCNTB
S3C6400 RISC MICROPROCESSOR
200