MRF24XA_15 Datasheet, PDF (229/258 Pages) Microchip Technology – Low-Power, 2.4 GHz ISM-Band IEEE 802.15.4™ RF

MRF24XA
REGISTER 9-30: RXCON1 (MAC RECEIVE CONTROL 1 REGISTER)
ADDRESS: 0x15
R/W/HC/HS-0
R/W-0
R/W/HC-0
R/W-0
R/W-0
R/W-0
R/W-0
R-0
RXEN
NOPA
RXDEC RSVLQIEN RSVRSSIEN RSVCHDREN RSVCFOEN
r
bit 7
bit 0
Legend: R = Readable bit
-n = Value at POR
r = Reserved
W = Writable bit
‘1’ = Bit is set
HC = Hardware Clear
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
HS = Hardware Set
bit 7
RXEN: Receive Enable Field bit
This bit enables/disables the packet reception. If an RX packet is currently being received, clearing
this bit causes that packet to be discarded.
1 = RX enabled
0 = RX disabled
Hardware clear/set when:
• Cleared when TRXMODE is set to TX-Streaming mode
• Set when TRXMODE is set to RX-Streaming mode
Clearing this bit aborts the current operation in the following cases:
• Receiving a packet in Packet mode or in RX-Streaming mode
Changes to most RX related settings must be only done while this bit is cleared.
The clear channel assessment (CSMAEN) and ACK-frame reception does not require RXEN = 1 as the
device turns the radio into RX when needed, irrespective of the status of the RXEN bit.
bit 6
NOPA: No Parsing bit
This bit disables packet parsing. Only CRC is checked, if it is enabled. This feature is useful in Sniffer
mode.
1 = Disable packet parsing
0 = Enable packet parsing
bit 5
RXDEC: RX Decryption bit
Setting this bit starts RX security processing (authentication or decryption, or both) on the last
received packet.
1 = RX security processing started/in process. RXDECIF or RXTAGIF is set.
0 = RX security processing inactive or complete
This bit clears itself after RX decryption has completed.
bit 4
RSVLQIEN: Receive Status Vector LQI Enable bit
If bit is set, the measured Link Quality is appended after the received frame in the packet buffer.
1 = Append LQI field
0 = Do not append LQI field
bit 3
RSVRSSIEN: Receive Status Vector RSSI Enable bit
If bit is set, the measured RSSI is appended after the received frame in the packet buffer.
1 = Append RSSI field
0 = Do not append RSSI field
 2015 Microchip Technology Inc.
Preliminary
DS70005023C-page 229