CC1010-RTR1 datasheet(94/152 Pages) TI

94 / 152 page

CC1010

SWRS047

Page 94 of 152

17.7 Baud rates

Baud rates from 0.6 kBaud to 76.8 kBaud

are

programmable

the

MODEM0.BAUDRATE

control

bits.

MODEM0.XOSC_FREQ must also be set

according to the crystal in use. Baud rates

are generated as follows:

()

kBaud

MHz

FREQ

XOSC

BAUDRATE

xosc

BAUDRATE

6864

⋅

RF_BAUDRATE is the output baud rate in

kBaud, BAUDRATE and XOSC_FREQ are

control bits in MODEM0. Using one of the

standard

crystals

mentioned

the

MODEM0.XOSC_FREQ

description

will

produce the standard baud rates 0.6, 1.2,

2.4, 4.8, 9.6, 19.2, 38.4 or 76.8 kBaud.

Other crystal frequencies will scale the

baud rate as described above.

Baud rates up to and including 19.2 kBaud

can

generated

for

any

crystal

frequency. Above 19.2 kBaud a few

combinations are possible, as shown in

Table 30.

MODEM0.

BAUDRATE

/XOSC.FREQ

fxosc

[MHz]

RF_BAUDRATE

[kBaud]

3.6864

7.3728

11.0592

14.7456

18.4320

22.1184

0.6

0/0

0/1

0/2

0/3

0/4

0/5

1.2

1/0

1/1

1/2

1/3

1/4

1/5

2.4

2/0

2/1

2/2

2/3

2/4

2/5

4.8

3/0

3/1

3/2

3/3

3/4

3/5

9.6

4/0

4/1

4/2

4/3

4/4

4/5

19.2

5/0

5/1

5/2

5/3

5/4

5/5

38.4

5/0

5/1

5/2

76.8

5/0

Table 30. Baud rates versus crystal frequency

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