i put this power on initialisation code in some other funtion
that function initialises the clock, crossbar, ios timers, etc.

i use timer 3 for uart0 baud rate generator.

    SFRPAGE = 0x01;
    TMR3CF = 0x08;  // 0 Timer 3 Configuration
    RCAP3L = 0xE6;  // Timer 3 Reload Register Low Byte
    RCAP3H = 0xFF;  // Timer 3 Reload Register High Byte
    TMR3H = 0x00;   // Timer 3 High Byte
    TMR3L = 0x00;   // Timer 3 Low Byte
    TMR3CN = 0x04;  // Timer 3 Control Register

haribabu