UARTDATA
lpuart32_write(port, ch, UARTDATA);
return sport->port.mapbase + UARTDATA;
return sport->port.mapbase + UARTDATA + sizeof(u32) - 1;
lpuart32_read(port, UARTDATA);
lpuart32_write(port, c, UARTDATA);
return lpuart32_read(port, UARTDATA);
lpuart32_write(&sport->port, sport->port.x_char, UARTDATA);
lpuart32_write(&sport->port, c, UARTDATA);
rx = lpuart32_read(&sport->port, UARTDATA);