Datasheet

53
AT89C51IC2
4301D–8051–02/08
Table 38. Example of computed value when X2=1, SMOD1=1, SPD=1
Table 39. Example of computed value when X2=0, SMOD1=0, SPD=0
The baud rate generator can be used for mode 1 or 3 (refer to Figure 20.), but also for
mode 0 for UART, thanks to the bit SRC located in BDRCON register (Table 46.)
Baud Rates F
OSCA
= 16.384 MHz F
OSCA
= 24MHz
BRL Error (%) BRL Error (%)
115200 247 1.23 243 0.16
57600 238 1.23 230 0.16
38400 229 1.23 217 0.16
28800 220 1.23 204 0.16
19200 203 0.63 178 0.16
9600 149 0.31 100 0.16
4800 43 1.23 - -
Baud Rates F
OSCA
= 16.384 MHz F
OSCA
= 24MHz
BRL Error (%) BRL Error (%)
4800 247 1.23 243 0.16
2400 238 1.23 230 0.16
1200 220 1.23 202 3.55
600 185 0.16 152 0.16