MRF24XA_15 Datasheet, PDF (55/258 Pages) Microchip Technology – Low-Power, 2.4 GHz ISM-Band IEEE 802.15.4™ RF

MRF24XA
REGISTER 2-40:
bit 7
EDPEAK (ENERGY DETECT PEAK INDICATION REGISTER)
R/HS/HC-00000000
EDPEAK<7:0>
ADDRESS: 0x33
bit 0
Legend: R = Readable bit W = Writable bit
-n = Value at POR
‘1’ = Bit is set
r = Reserved
HC = Hardware Clear
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
HS = Hardware Set
bit 7-0
EDPEAK<7:0>: Energy Detect Peak Indication Field bits
Measured peak signal strength during ED measurement.
Computation: The gain-compensated RSSI value is averaged over intervals of 128 μs. The peak value
obtained from a sequence of such measurements is stored in EDPEAK when EDMODE = 1.
REGISTER 2-41:
bit 7
CFOCON (CFO PRE COMPENSATION REGISTER)
R/W-0000
R/W-0000
CFOTX<3:0>
CFORX<3:0>
ADDRESS: 0x34
bit 0
Legend: R = Readable bit W = Writable bit
-n = Value at POR
‘1’ = Bit is set
r = Reserved
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-4
bit 3-0
CFOTX<3:0>: TX Carrier Frequency Offset Field bits
The host writes this value to compensate for the Carrier Frequency Offset of the node during transmis-
sion. Pre-compensation allows using crystals with wider tolerances.
Frequency Offset Unit is: 13 ppm/LSB. Two’s complement encoding.
CFORX<3:0>: RX Carrier Frequency Offset Field bits
The host writes this value to pre-compensate the Carrier Frequency Offset estimation window (±55 ppm).
Frequency Offset Unit is: 13 ppm/LSB. Two’s complement encoding.
 2015 Microchip Technology Inc.
Preliminary
DS70005023C-page 55