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PRELIMINARY
UART
S3C6400 RISC MICROPROCESSOR
31-2
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.
Buad-rate
Generator
Control
Unit
Transmitter
Receiver
Peripheral BUS
TXDn
Clock Source
RXDn
Transmit FIFO Register
(FIFO mode)
Transmit Holding Register
(Non-FIFO mode)
Receive FIFO Register
(FIFO mode)
Receive Holding Register
(Non-FIFO mode only)
In FIFO mode, all 64 Byte of Buffer register are used as FIFO register.
In non-FIFO mode, only 1 Byte of Buffer register is used as Holding register.
Transmit Shifter
Transmit Buffer
Register(64 Byte)
Receive Shifter
Receive Buffer
Register(64 Byte)
Figure 31-1 UART Block Diagram