Samsung S3C2451X User Manual page 356

UART
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
15-8
Specifications and information herein are subject to change without notice.
Figure 15-5. Serial I/O Frame Timing Diagram (Normal UART)
Figure 15-6. Infrared Transmit Mode Frame Timing Diagram
Figure 15-7. Infrared Receive Mode Frame Timing Diagram
S3C2451 RISC MICROPROCESSOR