MRF49XA Datasheet, PDF (27/102 Pages) Microchip Technology – ISM Band Sub-GHz RF Transceiver

MRF49XA
REGISTER 2-5: TXBREG: TRANSMIT BYTE REGISTER (POR: 0xB8AA)
R/W-1
bit 15
R/W-0
R/W-1
R/W-1
R/W-1
CCB<15:8>
R/W-0
R/W-0
R/W-0
bit 8
R/W-1
bit 7
R/W-0
R/W-1
R/W-0
R/W-1
TXDB<7:0>
R/W-0
R/W-1
R/W-0
bit 0
Legend:
R = Readable bit
-n = Value at POR
r = reserved bit
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-8
bit 7-0
CCB<15:8>: Command Code bits
The command code bits (10111000b) are serially sent to the microcontroller to identify the bits to be
written in the TXBREG.
TXDB<7:0>: Transmit Data Byte bits
The transmit data bits hold the 8 bits that are to be transmitted. To use this register, set the bit,
TXDEN = 1 (GENCREG<7>). If TXDEN is not set, use the FSK/DATA/FSEL pin to manually modulate
the data.
© 2009 Microchip Technology Inc.
Preliminary
DS70590B-page 25