MRF24J40MB-I Datasheet, PDF (105/156 Pages) Microchip Technology – IEEE 802.15.4™ 2.4 GHz RF Transceiver

MRF24J40
To configure the MRF24J40 for Slotted CSMA-CA
mode, set SLOTTED (TXMCR 0x11<5>) bit = 1.
To program the battery life extension bit in the Slotted
CSMA-CA mode, set BATLIFEXT (TXMCR 0x11<6>)
bit = 1.
The macMinBE and macMaxCSMABackoff values are
set to the IEEE 802.15.4 Standard defaults. To change
their values:
• macMinBE – Program MACMINBE (TXMCR
0x11<4:3>) bits to a value between 0 and 3 (the
default is 3).
• macMaxCSMABackoff – Program CSMABF
(TXMCR 0x11<2:0>) bits to a value between 0
and 5 (the default is 4).
TABLE 3-11:
Addr. Name
0x11 TXMCR
REGISTERS ASSOCIATED WITH CSMA-CA
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
NOCSMA BATLIFEXT SLOTTED MACMINBE1 MACMINB0
Bit 2
CSMABF2
Bit 1
CSMABF1
Bit 0
CSMABF0
© 2010 Microchip Technology Inc.
Preliminary
DS39776C-page 105