CC1110-RTR1 datasheet(133/203 Pages) TI

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CC1110

CC1110 PRELIMINARY Datasheet (Rev. 1.01) SWRS033A

Page 133 of 202

CLKCON (0xC6) – Clock Control

Bit

Name

Reset

R/W

Description

OSC32K

R/W

32 kHz clock oscillator select:

0 – 32.768 kHz crystal oscillator

1 – 34 kHz low power RC oscillator

OSC

R/W

System clock oscillator select:

0 – 26 MHz crystal oscillator

1 – 13 MHz HF RC oscillator

This setting will only take effect when the selected oscillator is

powered up and stable. If the selected oscillator is not powered up,

then writing this bit will power it up.

5:3

TICKSPD[2:0]

001

R/W

Timer ticks output setting, can not be higher than system clock

setting given by

OSC bit setting

000 – System clock

001 – System clock / 2

010 – System clock / 4

011 – System clock / 8

100 – System clock / 16

101 – System clock / 32

110 – System clock / 64

111 – System clock / 128

2:1

R/W

Reserved. Must always be set to 000.

CLKSPD

R/W

Clock Speed. Sets system clock frequency together with the

OSC

bit setting

0 – 32 MHz

1 – 16 MHz

This bit must always follow the value of the

OSC bit, which

selects which oscillator to use.

CC1110-RTR1 Datasheet(PDF) 133 Page - Texas Instruments

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