UART0 configuration

Hi All, I m using UV3 given along with KEIL EPM900. I was trying to simulate UART0.
Here is the peice of code is used to configure UART0.

PCON &= 0xBF;
S0STAT = 0x60;
S0CON |= 0x50;
S0CON &= 0x5F;
BRGCON_0 |= 0x02;
BRGCON_0 &= 0xFE;
BRGR1_0 = BYTE_HIGH_1;
BRGR0_0 = BYTE_LOW_1;
BRGCON_0 |= 0x01;
ESR = 1;
EST = 1;
EA = 1;
void uart0_rx_isr()interrupt 4 using 1
{ RI_0 = 0;
FLAG_BYTE_RX_0 = 1;
temp = S0BUF;
}

then read data into S0BUF in ISR function.
When i go into debug mode. I see the baud rate changing to the desiered value. But if i put some value into S0BUF, it doesnt come into the temp variable.

Plz guide me.

regards
Mithilesh