CC2520_11 Datasheet, PDF (112/133 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
EXCFLAG0, A 0x010, R 0x00, Exception flags
Bit
Bit mnemonic
no.
7:0
EXCFLAG[7:0]
Reset
value
0x00
Mode
R/W0
Description
Exception pending bits for exceptions 7 to 0. Whenever an
exception occurs this bit will be set by hardware. Only software
can clear this bit. EXCFKLAG is write zero only and attempts to
write ‘1’ to any bits in EXFLAG will not result in a register change.
1: This exception has occurred and not yet cleared.
0: This exception has not yet occurred or has been cleared by
software.
Bit no
Exception
0
RF_IDLE
1
TX_FRM_DONE
2
TX_ACK_DONE
3
TX_UNDERFLOW
4
TX_OVERFLOW
5
RX_UNDERFLOW
6
RX_OVERFLOW
7
RXENABLE_ZERO
EXCFLAG1, A 0x011, R 0x00, Exception flags
Bit
Bit mnemonic
no.
7:0
EXCFLAG[15:8]
Reset
value
0x00
Mode
R/W0
Description
Exception pending bits for exceptions 15 to 8. See description
above.
Bit no
Exception
8
RX_FRM_DONE
9
RX_FRM_ACCEPTED
10
SRC_MATCH_DONE
11
SRC_MATCH_FOUND
12
FIFOP
13
SFD
14
DPU_DONE_L
15
DPU_DONE_H
112
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