CC1010 Datasheet, PDF (87/133 Pages) Texas Instruments – Single Chip Very Low Power RF Transceiver with 8051-Compatible Microcontroller

Chipcon
SmartRF ^â CC1010
10110001101
TX
f₁
data
f₀
Time
Figure 22. Manchester encoding
Table 21. Properties of different data modes (MODEM0.DATA_FORMAT)
Transparent UART mode
mode
Baudrate
configuration
Data encoding
User defined
User defined
Defined by UART
through Timer 1
Defined by UART
settings
Data Input &
Output
Clock
Regeneration
RFBUF(0)
N/A
N/A
Performed by
UART
Synchronous
Manchester
encoded mode
Synchronous NRZ
mode
Generated by hardware, as defined by
MODEM0.BAUDRATE
Manchester
encoding.
Bitrate is half of
baudrate.
None (NRZ)
RFBUF in bytemode, RFBUF(0) in bitmode.
Performed
internally. A
violation to the
Manchester coding
format is reported
in RFCON.MVIOL.
Performed by
hardware
Bitmode/
N/A
N/A
Bytemode
Both possible. Bytemode is forced when
using preamble detection
Preamble
N/A
N/A
detection
If PDET.PEN=1 a configurable number of
alternating '0's and '1's (PDET.PLEN)
followed by a one-byte start of frame
delimiter as defined in BSYNC is needed to
trigger reception. Bytemode is forced
when PDET.PEN=1.
Chipcon AS
SmartRF^â CC1010 PRELIMINARY Datasheet (rev. 1.0) 2002-09-18
Page 87 of 133