AT89C51RC2-3CSCM View Datasheet(PDF) - Atmel Corporation
Part Name
Description
Manufacturer
AT89C51RC2-3CSCM Datasheet PDF : 127 Pages
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UART Registers
Table 34. Example of Computed Value When X2=1, SMOD1=1, SPD=1
Baud Rates
115200
57600
38400
28800
19200
9600
4800
FOSC = 16. 384 MHz
BRL
Error (%)
247
1.23
238
1.23
229
1.23
220
1.23
203
0.63
149
0.31
43
1.23
FOSC = 24MHz
BRL
Error (%)
243
0.16
230
0.16
217
0.16
204
0.16
178
0.16
100
0.16
-
-
Table 35. Example of Computed Value When X2=0, SMOD1=0, SPD=0
Baud Rates
4800
2400
1200
600
FOSC = 16. 384 MHz
BRL
Error (%)
247
1.23
238
1.23
220
1.23
185
0.16
FOSC = 24MHz
BRL
Error (%)
243
0.16
230
0.16
202
3.55
152
0.16
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 42.)
Table 36. SADEN Register
SADEN - Slave Address Mask Register for UART (B9h)
7
6
5
4
3
2
1
0
Reset Value = 0000 0000b
Table 37. SADDR Register
SADDR - Slave Address Register for UART (A9h)
7
6
5
4
3
2
1
0
Reset Value = 0000 0000b
50 AT89C51RB2/RC2
4180E–8051–10/06
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