CC1150-RTR1 datasheet(51/67 Pages) TI

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CC1150

SWRS037A

Page 51 of 60

0x15: DEVIATN – Modulator deviation setting

Bit

Field Name

Reset

R/W

Description

Not Used.

6:4

DEVIATION_E[2:0]

R/W

Deviation exponent.

Not Used.

2:0

DEVIATION_M[2:0]

R/W

When MSK modulation is enabled:

Specifies the fraction of symbol period (1/8-8/8) during which a

phase change occurs (‘0’: +90deg, ‘1’:-90deg). Refer to the

SmartRF Studio [11] software for correct DEVIATN setting when

using MSK.

When 2-FSK/GFSK modulation is enabled:

Deviation mantissa, interpreted as a 4-bit value with MSB implicit

1. The resulting frequency deviation is given by:

DEVIATION

xosc

dev

DEVIATION

)

(

⋅

The default values give ±47.607 kHz deviation, assuming 26.0

MHz crystal frequency.

When ASK/OOK modulation is enabled:

This setting has no effect.

0x17: MCSM1 – Main Radio Control State Machine configuration

Bit

Field Name

Reset

R/W

Description

7:6

Not Used.

5:2

Reserved

12 (0x0C)

Defined on the transceiver version (

CC1101).

1:0

TXOFF_MODE[1:0]

R/W

Select what should happen when a packet has been sent (TX)

Setting

Next state after finishing packet transmission

0 (00)

IDLE

1 (01)

FSTXON

2 (10)

Stay in TX (start sending preamble)

3 (11)

Do not use, not implemented on

CC1150

CC1150-RTR1 Datasheet(PDF) 51 Page - Texas Instruments

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