Hi all,
Iam working on c8051f005,iam performing serial commmunication.Iam using timer1 autoreload mode 2,during calculation of baudrate here using -ve sign,what is the significance of -ve sign.please suggest me

please go through the code.

void UART0_Init (void)
{
SCON = 0x50; // SCON0: mode 1, 8-bit UART, enable RX
TMOD = 0x20; // TMOD: timer 1, mode 2, 8-bit reload
TH1 = -(SYSCLK/BAUDRATE/16);// set Timer1 reload value for baudrate
TR1 = 1; // start Timer1
CKCON |= 0x10; // Timer1 uses SYSCLK as time base
PCON |= 0x80; // SMOD00 = 1 (disable baud rate
// divide-by-two)
TI = 1; // Indicate TX0 ready
}


Thanks in advance
raghav