请老鸟讲解S3C44B0X UART寄存器
菜鸟请教UCON0寄存器有几个BIT的作用看不懂，请高手帮忙分析一下：Transmit Mode These two bits determine which function is currently able to write
Tx data to the UART transmit holding register.
00 = Disable 01 = Interrupt request or polling mode
10 = BDMA0 request (Only for UART0)
11 = BDMA1 request (Only for UART1)
00
Receive Mode These two bits determine which function is currently able to read
data from UART receive buffer register.
00 = Disable, 01 = Interrupt request or polling mode
10 = BDMA0 request (Only for UART0)
11 = BDMA1 request (Only for UART1)
00
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