MRF24J40_08 Datasheet, PDF (60/152 Pages) Microchip Technology – IEEE 802.15.4™ 2.4 GHz RF Transceiver

MRF24J40
REGISTER 2-58: CCAEDTH: ENERGY DETECTION THRESHOLD FOR CCA REGISTER
(ADDRESS: 0x3F)
R/W-0
CCAEDTH7
bit 7
R/W-0
CCAEDTH6
R/W-0
CCAEDTH5
R/W-0
CCAEDTH4
R/W-0
CCAEDTH3
R/W-0
CCAEDTH2
R/W-0
CCAEDTH1
R/W-0
CCAEDTH0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
CCAEDTH<7:0>: Clear Channel Assessment (CCA) Energy Detection (ED) Mode bits
If the in-band signal strength is greater than the threshold, the channel is busy. The 8-bit value can be
mapped to a power level according to RSSI. Refer to Section 3.6 “Received Signal Strength Indicator
(RSSI)/Energy Detection (ED)”.
Default value: 0x00. Recommended value: 0x60 (approximately -69 dBm).
DS39776B-page 58
Preliminary
© 2008 Microchip Technology Inc.