AT89C51ID2-RDTIM datasheet(59/159 Pages) ATMEL

Nome de Peças	AT89C51ID2-RDTIM

Descrição Electrónicos	8-bit Flash Microcontroller

PDF	159 Pages

Scroll/Zoom	100%

Fabricante Electrônico	ATMEL [ATMEL Corporation]

Página de início	http://www.atmel.com

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AT89C51ID2

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.)

UART Registers

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

OSC = 16. 384 MHz

OSC = 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

1.23

Baud Rates

FOSC = 16. 384 MHz

FOSC = 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

7654

3210

7654

3210

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