CC2520_11 Datasheet, PDF (107/133 Pages) Texas Instruments – 2.4 GHZ IEEE 802.15.4/ZIGBEE RF TRANSCEIVER

CC2520 DATASHEET
2.4 GHZ IEEE 802.15.4/ZIGBEE® RF TRANSCEIVER
SWRS068 – DECEMBER 2007
SRCMATCH, A 0x002, R 0x07, Source address matching and pending bits
Bit no. Bit mnemonic
7:3
RESERVED[4:0]
2
PEND_DATAREQ_ONLY
1
AUTOPEND
0
SRC_MATCH_EN
Reset
value
0x00
1
1
1
Mode
R/W
R/W
R/W
R/W
Description
Reserved. Always write ‘0’
When this bit is set, the AUTOPEND function also
requires that the received frame is a "DATA REQUEST"
MAC command frame.
Automatic acknowledgment pending flag enable.
Upon reception of a frame, the pending bit in the
(possibly) returned acknowledgment will be set
automatically, given that:
- FRMFILT0.FRAME_FILTER_EN is set.
- SRCMATCH.SRC_MATCH_EN is set.
- SRCMATCH.AUTOPEND is set.
- The received frame matches the current
SRCMATCH.PEND_DATAREQ_ONLY setting.
- The received source address matches at least one
source match table entry, which is enabled in both
SHORT_ADDR_EN and SHORT_PEND_EN or
EXT_ADDR_EN and EXT_PEND_EN.
Note: Details for SHORT_PEND_EN and
EXT_PEND_EN is found in memory map description.
Source address matching enable (This bit is “don’t care” if
FRMFILT0.FRAME_FILTER_EN = 0)
SRCSHORTEN0, A 0x004, R 0x00, Short address matching
Bit no. Bit mnemonic
7:0
SHORT_ADDR_EN[7:0]
Reset
value
0x00
Mode
R/W
Description
The 7:0 part of the 24-bit word SHORT_ADDR_EN that
enables / disables source address matching for each of
the 24 short address table entries.
Optional safety feature: To ensure that an entry in the
source matching table is not used while it is being
updated, set the corresponding SHORT_ADDR_EN bit to
0 while updating.
SRCSHORTEN1, A 0x005, R 0x00, Short address matching
Bit no. Bit mnemonic
7:0
SHORT_ADDR_EN[15:8]
Reset
value
0x00
Mode
R/W
Description
The 15:8 part of the 24-bit word SHORT_ADDR_EN
See description of SRCSHORTEN0.
SRCSHORTEN2, A 0x006, R 0x00, Short address matching
Bit no. Bit mnemonic
7:0
SHORT_ADDR_EN[23:16]
Reset
value
0x00
Mode
R/W
Description
The 23:16 part of the 24-bit word SHORT_ADDR_EN
See description of SRCSHORTEN0.
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