AT89C51ID2-SMSIM ATMEL [ATMEL Corporation], AT89C51ID2-SMSIM Datasheet - Page 59

• Manufacturer Part Number: AT89C51ID2-SMSIM
• Description: 8-bit Flash Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

UART Registers
4289A–8051–09/03
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 24.), but also for
mode 0 for UART, thanks to the bit SRC located in BDRCON register (Table 46.)
Table 40. SADEN Register
SADEN - Slave Address Mask Register for UART (B9h)
Reset Value = 0000 0000b
Table 41. SADDR Register
SADDR - Slave Address Register for UART (A9h)
Reset Value = 0000 0000b
Baud Rates
Baud Rates
7
7
115200
57600
38400
28800
19200
9600
4800
4800
2400
1200
600
6
6
BRL
BRL
247
238
229
220
203
149
247
238
220
185
43
5
5
F
F
OSC
OSC
= 16. 384 MHz
= 16. 384 MHz
4
4
Error (%)
Error (%)
1.23
1.23
1.23
1.23
0.63
0.31
1.23
1.23
1.23
1.23
0.16
3
3
BRL
BRL
2
2
243
230
217
204
178
100
243
230
202
152
-
AT89C51ID2
F
F
OSC
OSC
= 24MHz
= 24MHz
1
1
Error (%)
Error (%)
0.16
0.16
0.16
0.16
0.16
0.16
0.16
0.16
3.55
0.16
-
0
0
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