![background image](http://html.mh-extra.com/html/texas-instruments/cc1150/cc1150_manual_1097166046.webp)
DEVIATION _ E
xosc
dev
17
f
f
(8 DEVIATION _ M) 2
2
=
´
+
´
CHANSPC _ E
xosc
channel
18
f
f
(256 CHANSPC _ M) 2
CHAN
2
D
=
´
+
´
´
SWRS037B – JANUARY 2006 – REVISED MARCH 2015
Table 5-30. 0x14: MDMCFG0 – Modulator Configuration
BIT
FIELD
TYPE
RESET
DESCRIPTION
7:0
CHANSPC_M[7:0]
R/W
0xF8
8-bit mantissa of channel spacing (initial 1 assumed).
The channel spacing is multiplied by the channel
number CHAN and added to the base frequency. It is
unsigned and has the format:
(8)
The default values give 199.951 kHz channel spacing
(the closest setting to 200 kHz), assuming 26.0 MHz
crystal frequency.
Table 5-31. 0x15: DEVIATN – Modulator Deviation Setting
BIT
FIELD
TYPE
RESET
DESCRIPTION
7
R0
Not Used.
6:4
DEVIATION_E[2:0]
R/W
0x4
Deviation exponent.
3
R0
Not Used.
2:0
DEVIATION_M[2:0]
R/W
0x7
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
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
(9)
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.
Table 5-32. 0x17: MCSM1 – Main Radio Control State Machine Configuration
BIT
FIELD
TYPE
RESET
DESCRIPTION
7:6
R0
Not Used.
5:2
Reserved
R0
0x0C
Defined on the transceiver version (CC1101).
1:0
TXOFF_MODE[1:0]
R/W
0x0
Select what should happen when a packet has been
sent (TX):
The binary number is the setting and the result is the
next state after finishing packet transmission.
00 = IDLE
01 = FSTXON
10 = Stay in TX (start sending preamble)
11 = Do not use, not implemented on CC1150
46
Detailed Description
Copyright © 2006–2015, Texas Instruments Incorporated
Product Folder Links:
Summary of Contents for CC1150
Page 61: ...PACKAGE OPTION ADDENDUM www ti com 30 May 2018 Addendum Page 2 ...
Page 64: ......
Page 65: ......