CC2550 Datasheet, PDF (37/50 Pages) Texas Instruments – Single Chip Low Cost Low Power RF-Transmitter

CC2550
Bit Field Name
7:0 SYNC[15:8]
0x04: SYNC1– Sync word, high byte
Reset
R/W Description
211 (0xD3) R/W 8 MSB of 16-bit sync word
Bit Field Name
7:0 SYNC[7:0]
0x05: SYNC0 – Sync word, low byte
Reset
R/W Description
145 (0x91) R/W 8 LSB of 16-bit sync word
Bit Field Name
7:0 PACKET_LENGTH
0x06: PKTLEN – Packet length
Reset
R/W Description
255 (0xFF) R/W Indicates the packet length when fixed length
packets are enabled.
0x08: PKTCTRL0 – Packet automation control
Bit Field Name
Reset R/W Description
7 Reserved
6 WHITE_DATA
5:4 PKT_FORMAT[1:0]
3 CC2400_EN
2 CRC_EN
1:0 LENGTH_CONFIG[1:0]
R0
1
R/W Turn data whitening on / off
0: Whitening off
1: Whitening on
0 (00) R/W Format of RX and TX data
Setting Packet format
0 (00) Normal mode, use TX FIFO
1 (01)
Serial Synchronous mode, used for backwards
compatibility
2 (10)
Random TX mode; sends random data using PN9
generator. Used for test.
3 (11) ^{Asynchronous transparent mode. Data in on GDO0}
and Data out on either of the GDO pins
0
R/W Enable CC2400 support. Use same CRC implementation as
CC2400.
1
R/W 1: CRC calculation enabled
0: CRC disabled
1 (01) R/W Configure the packet length
Setting Packet length configuration
0 (00) Fixed length packets, length configured in
PKTLEN register
1 (01) Variable length packets, packet length configured
by the first byte after sync word
2 (10) Enable infinite length packets
3 (11) Reserved
Preliminary Data Sheet (rev. 1.1) SWRS039
Page 37 of 51