MRF24XA_15 Datasheet, PDF (142/258 Pages) Microchip Technology – Low-Power, 2.4 GHz ISM-Band IEEE 802.15.4™ RF

MRF24XA
REGISTER 5-2: RXFILTER (RX FILTER) – WHEN IEEE 802.15.4™ MODE
R/W-0
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
PANCRDN CRCREJ CMDREJ DATAREJ
UNIREJ
NOTMEREJ
bit 7
ADDRESS: 0x18
R/W-1
R/W-1
BCREJ NSTDREJ
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
bit 2
bit 1
bit 0
Out of scope
UNIREJ: Unicast Reject Enable bit⁽²⁾
Setting this bit enables the user to reject all unicast packets as in:
802.15.4 Mode: PAN Identifier matches with the PANID<15:0> or 0xFFFF, and Destination Address
matches the address in the ADDR<63:0> or SHADDR<15:0> register, which the DAMode selects.
Proprietary Mode: Destination Address matches the address in ADDR<ADDRSZ<2:0>*8-1:0> reg-
ister, provided that DAddrPrsnt Frame Control field is set⁽¹⁾.
1 = Reject all Unicast packets addressed to this node
0 = Disable Unicast Rejection
NOTMEREJ: Not Me Unicast Reject Enable bit⁽³⁾
Setting this bit enables the user to reject all unicast packets as in:
802.15.4 Mode: Destination PAN Identifier does not match PANID<15:0> and is not 0xFFFF (broad-
cast) or Destination Address does not match the address in the ADDR<63:0> register or the
SHADDR<15:0> register, which the DAMode selects.
Proprietary Mode: Destination Address matches the address in ADDR<ADDRSZ<2:0>*8-1:0> reg-
ister, provided that DAddrPrsnt Frame Control field is set⁽¹⁾.
1 = Reject all Unicast packets NOT addressed to this node
0 = Disable Not Me Unicast Rejection Filtering
BCREJ: Broadcast Rejection bit
802.15.4 Mode: Setting this bit enables the user to reject all Broadcast packets of type Data or Com-
mand. A Data or Command packet is broadcast when Short Destination Addressing is used (DAMode
= 10) and Short Address is equal 0xFFFF.
Proprietary Mode: Setting this bit enables the user to reject all Broadcast packets of type Data or
Command (or Streaming). A packet is broadcast when FrameCtrl[Broadcast] is set.
1 = Reject Broadcast Packets
0 = Disable Broadcast Rejection
NSTDREJ: Non-Standard Frame Reject bit⁽⁴⁾
This bit enables the user to reject all 802.15.4 frames having 01 for the DAMode or SAMode fields or
having the most significant bit (MSb) (bit 2) in the Type field set (1) or having the MSb (bit 1) in the
Frame Version field set to⁽¹⁾.
1 = Reject all Non-Standard 802.15.4 packets
0 = Disable Non-Standard Rejection
Note 1:
2:
3:
4:
In Proprietary mode (FRMFMT = 1), when CRCREJ = 1 is used to reject unicast frames not addressed to
this node. NOTMEREJ = 1 does not reject these frames.
UNIREJ does not affect the frames using implied destination addressing in 802.15.4 mode and inferred
destination addressing in Proprietary mode.
NOTMEREJ does not affect the frames using implied destination addressing in 802.15.4 mode and
inferred destination addressing in Proprietary mode.
NSTDREJ does not affect the Proprietary frames in Proprietary mode.
DS70005023C-page 142
Preliminary
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