T84C5112-RKREV datasheet(35/97 Pages) ATMEL

tên linh kiện	T84C5112-RKREV

Giải thích chi tiết về linh kiện	8-bit Microcontroller with A/D converter

PDF	97 Pages

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nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

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35 / 97 page

Rev. B - November 10, 2000

Preliminary

T80C5112

· for UART

Example of computed value when X2=1, SMOD1=1, SPD=1

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 figures 13 ), but also for mode 0 for both UARTs,

thanks to the bit SRC located in BDRCON register (Table 20)

11.4. UARTs registers

SADEN - Slave Address Mask Register for UART (B9h)

Reset Value = 0000 0000b

SADDR - Slave Address Register for UART (A9h)

Reset Value = 0000 0000b

Baud Rates

FXTAL = 16.384 MHz

FXTAL = 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

Baud_Rate =

2SMOD1 x 2X2 x FXTAL

2 x 2 x 6(1-SPD) x 16 x [256 - (BRL)]

(BRL) = 256 -

2SMOD1 x 2X2 x FXTAL

2 x 2 x 6(1-SPD) x 16 x Baud_Rate

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