cc1101.pdf page 44 

17.4@LAZX(CS) 



LAZXiCSj͑IĂdg̎gт悢ԂmF̂ƁAVNM𑗂oƂǎɂ邽߂Ɏg܂B

CŚAXɒ߂邱Ƃł2̏󋵂ɊÂĕ񍐓s܂BF 

vO\Ȑ΂lARSSI臒liqXeVXŁjȉɂƂAAT[g~܂B

ZNV17.4.1ł茩ĂB 

RSSI1RSSITv玟܂ŃvO\ȐdBőƂACS̓AT[gARSSIdB̓ŌƂAAT[g~܂B 

̃ZbeBO͐΂̐MxɈˑĂȂāÂ悤ɁAԂƂƂɊ̐MGςĂ̂邽߂ɖɗ܂B 

ZNV17.4.2ł茩ĂB 

s铯m点̂߂̂lx荂ƂMxɗvāAMDMCFG2ɃL[ZXMۂƂɂĔzu

铯m点\Iʉߎ҂IOCFGx.GDOx_CFG=14Zbg邱ƂɂGDOŝ1{̏Ŋώ@邱ƂłāAXe[^XWX^

PKTSTATUS.CS.񂾂̂ŁAL[ZXg邱Ƃł܂ 

LA[ZX𑼂̎gŔATX-if-CCA@\i46y[W̏ő17.5߂܂jƃIvV̑RXIi52y[W̏ő0߂܂j܂݂܂B 

CŚAISMшőRF犱邱ƂɎg܂B 


17.4.1 CSΕs臒l 


RSSIlɊ֘A΂ĺAȉ̃WX^[Ɉˑ܂F 





AGCCTRL2.MAX_LNA_GAIN
AGCCTRL2.MAX_DVGA_GAIN
AGCCTRL1.CARRIER_SENSE_ABS_THR
AGCCTRL2.MAGN_TARGET 


AGCCTRL2.MAX_LNA_GAINAāA 

AGCCTRL2.MAX_DVGA_GAINZbeBOA΂̓́A1dB̃XebvŁA}7 dB𒲐߂邱Ƃł܂ 

MAGN_TARGETZbeBÓAubJ[e/I𐫂Ɗx̊Ԃ̑ËłB 

̒l𑝂₷ƂŃubJ[AāAߋ̑I𐫂̂߂ɓXy[X炵܂B 

́AMAGN_TARGETZbeBO𐶂ݏo߂SmartRF Studiom8ngƋ߂܂B 

\32ƕ\33́Aꂼ2.4kBaud250kBaudf[^MxCSœT^IRSSI\l܂B 

ftHgCARRIER_SENSE_ABS_THR=0i0dBjMAGN_TARGET=3i33dBjAg܂B 

̃f[^Mx̂߂ɁA[U[CSɐ΂l邽߂ɁAގe[u𐶐Ȃ΂܂B 

lݒ肳Ȃ΁AȂ킿AM߂A
Al͍ŏMAX_LNA_GAINlƂꂩMAX_DVGA_GAINl炷Ƃŏ𒲐߂Ȃ΂Ȃ܂B 

łZbeBO鎞A̓V[o[tgGhł̏d͒l炵܂B 




17.4.2 CSe臒l 

ΓIȂĺATdȐMxŋ}]܂B 

̃ZbeBO͐΂̐MxɈˑÂ悤ɁAmCYtA[ςĂ鎞ԂŊŐM邽߂ɖɗ܂B 

WX^[AGCCTRL1.CARRIER_SENSE_REL_THR͑ΓICSɋ^/Ȃ̂ɗp܂AāA6dBA10dB܂14dB̏o_IԂ߂ɁARSSI͕ς܂B 




cc1101.pdf page 46 

17.5NA`lAssessment(CCA) 

NA`lAssessmentiCCAjAg܂ 

݂̃`lt[̏Ԃł邩AdgrW[̏Ԃɂ邩ǂƁB

݂CCAXe[ǵAIOCFGx.GDOx_CFG=0x09.Zbg邱ƂɂāAGDOŝǂ̏łł܂


MCSM1.CCA_MODÉACCA肷ƂAgp郂[hIт܂B 

CC1101RXXe[gɂSTX܂SFSTXON߃Xg[u^ƂANA`lȂ΁A
TX܂FSTXONXe[g͓邾łB 

Ȃ΁A`bvRX̂܂܂łB 

`lꂩ痘pł悤ɂȂȂ΁AVXg[u߂SPIC^[tF[XőOɁA
WITX܂FSTXONXe[gɓ܂B 

̓́ATX-if-CCAƌĂ΂Ă܂B 


4CCA̓vO邱Ƃł܂F 

Ɂigps\CCÁATXɍs܂jAIf RSSÍAݔBoth󂯂Ăo_UnlessĂ܂L(āAݎ󂯂ĂȂRSSI) 











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