8051 Serial Port - gmitWEB
8051 Serial Port - gmitWEB
8051 Serial Port - gmitWEB
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Baud Rate for Modes 1 and 3<br />
• Configure timer 1 for 8-bit auto-reload mode (timer mode 2)<br />
– Upper 4 bits of TMOD register = 0010<br />
Baud Rate<br />
=<br />
2<br />
32<br />
SMOD<br />
x<br />
( Timer 1Overflow Rate)<br />
Baud Rate<br />
=<br />
2<br />
32<br />
SMOD<br />
x<br />
Oscillator Frequency<br />
12x<br />
[ 256 − TH1]<br />
Embedded Systems 1 5-8 <strong>8051</strong> Peripherals
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