RF Core Data Memory
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Table 25-4. RAM-Based Registers (continued)
Name Addr Prot Description
Configure radio hardware
Bits 0–1: RXCAP
00: Do not capture on Rx packets
01: Capture start of every Rx packet
10: Capture end of every Rx packet
11: Capture start of first Rx packet only
Bits 2–3: TXCAP
00: Do not capture on Tx packets
01: Capture start of every Tx packet
10: Capture end of every Tx packet
11: Capture start of first Tx packet only
Bits 4–5: TXIF: Tx IF configuration (for 2 Mbps
only)
0x607E Sem0
PRF_RADIO_CONF
00: Zero IF
01: ±1 MHz IF
10: ±2 MHz IF
11: ±3 MHz IF
Bit 6: DCOFF: Special dc offset handling
0: Standard dc offset
1: Use special dc offset routine measuring dc offset
right after Rx start
Bit 7: DCWB: Write back dc offset estimate to
override registers
0: Do not write back
1: Write back after each received packet with CRC
OK
0x607F None Reason why LLE ended task
PRF_ENDCAUSE
Table 25-5. Address Structure for Auto Mode
Name Index Prot Description
Bit 0: ENA0 (Enable for primary sync word – Rx task only)
0: Disable address entry for primary sync word
1: Enable address entry for primary sync word
Bit 1: ENA1 (Enable for secondary sync word – Rx task only)
0: Disable address entry for secondary sync word
1: Enable address entry for secondary sync word
Bit 2: REUSE (Allow reuse of transmitted packet)
0: LLE deallocates packet after it has been acknowledged
1: LLE does not deallocate packet after it has been acknowledged
(this is up to the MCU)
Bit 3: AA (Enable auto acknowledgement/auto retranmsmission)
0: Disable auto ack (Rx) or auto retransmission (Tx) for this address
0x00 Sem1 1: Enable auto ack (Rx) or auto retransmission (Tx) for this address
CONF
Bit 4: VARLEN (variable length support)
0: Use fixed length given by RXLENGTH in receiver when receiving
packets or ACKs
1: Use variable length up to RXLENGTH in receiver when receiving
packets or ACKs
Bit 5: FIXEDSEQ (fixed sequence number – Tx task only)
0: Insert sequence number from SEQSTAT.SEQ
1: Read sequence number from Tx FIFO
Bit 6: TXLEN
0: Insert packet length in header when transmitting
1: Used fixed-length word when transmitting
Note: Must not be set to 1 unless the peer uses fixed length
0x01 Sem1 Maximum length of received packet (0–127)
RXLENGTH
0x02 Sem1 Address of packet
ADDRESS
302
CC2541 Proprietary Mode Radio SWRU191C–April 2009–Revised January 2012
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