T89C51RC2-3CSIM datasheet(45/117 Pages) ATMEL

Part #	T89C51RC2-3CSIM

Description	8-bit Microcontroller with 16K/ 32K Bytes Flash

PDF	117 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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45 / 117 page

T89C51RB2/RC2

4105D–8051–10/06

Table 25. Example of Computed Value When X2=1, SMOD1=1, SPD=1

Table 26. 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 19.), but also for

mode 0 for UART, thanks to the bit SRC located in BDRCON register (Table 33.)

UART Registers

Table 27. SADEN Register

SADEN - Slave Address Mask Register for UART (B9h)

Reset Value = 0000 0000b

Table 28. SADDR Register

SADDR - Slave Address Register for UART (A9h)

Reset Value = 0000 0000b

Baud Rates

FOSC = 16. 384 MHz

FOSC = 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

T89C51RC2-3CSIM Datasheet(PDF) 45 Page - ATMEL Corporation

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