
PRELIMINARY
UART
S3C6400 RISC MICROPROCESSOR
31-10
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.
EXTERNAL INTERFACES
Note:
UART external pads are shared with other IPs like CFCON, IrDA and etc. In order to use these pads for
UART, GPIO must be set before the UART started. For more information refer to the GPIO chapter of this
manual for proper GPIO settings.
Name
Type
Source/Destination
Description
XuRXD[0] Input
Pad Receive data for UART0
XuTXD[0] Output
Pad
Transmit data for UART0
XuCTSn[0]
Input
Pad
Clear to Send(active low) for UART0
XuRTSn[0] Output
Pad
Request
to Send(active low) for UART0
XuRXD[1] Input
Pad Receive data for UART1
XuTXD[1] Output
Pad
Transmit data for UART1
XuCTSn[1]
Input
Pad
Clear to Send(active low) for UART1
XuRTSn[1] Output
Pad
Request
to Send(active low) for UART1
XuRXD[2] Input
Pad Receive data for UART2
XuTXD[2] Output
Pad
Transmit data for UART2
XuRXD[3] Input
Pad Receive data for UART3
XuTXD[3] Output
Pad
Transmit data for UART3