I'm having a little trouble trying to get my 16550 UART to Receive Characters. I can get it to transmit Bytes, but it will not receive bytes.

My Initialization Routine is as follows:
LCR=0x80; // Set Baud Rate Divisor Latch to 1
DLM=0x00; // Set Baud Rate divider
DLL=0x1b;
LCR=0x03; // Set Divisor Latch to 1 and 8bit word length
MCR=0x00;
FCR=0x07; //Enable FIFOs and Reset the RX & TX FIFO. Set FIFO trigger level to 1 byte
IER=0x0F; // Enable all Interrupts

THR=0x30; // This transmits "0" ASCII character

when I read the RBR register I always get 0x00 when I know I sent characters to the port.

Any thoughts would be helpful.

Thanks,

Eric