Uart - Samsung S5PV210 Hardware Design Manual

S5PV210_HARDWARE DESING GUIDE REV 1.0

11. UART

11.1. Signal descriptoin
Signal I/O
UART0/1/2/3_RXD
O UART transmits data output
UART0/1/2/3_TXD
UART0/1/2_CTSn
O
UART0/1/2_RTSn
Note)1.Channel #0,1,2 support Auto Flow Control with RTS & CTS signal.
2. UART Ch 0, 1, 2 and 3 supports IrDA 1.0
3. UART Ch 2 is used for iROM booting message and iROM UART booting.
So, it is better to use UART ch 2 for debugging message.
Description
UART receives data input
I
UART clear to send input signal
I
UART request to send output signal
Comment
CH0 FIFO Depth : 256byte
CH1 FIFO Depth : 64byte
CH2 FIFO Depth : 16byte
CH3 FIFO Depth : 16byte
- CH2 is for Low Power Audio(RP)
- UART2_CTSn and UART2_RTSn signals are muxed
with UART3_RXD and UART3_TXD respectively.
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