CC2400 Datasheet, PDF (28/84 Pages) Texas Instruments – 2.4 GHz Low-Power RF Transceiver

CC2400
FIFO_FULL is high if the number of bytes
in the FIFO is greater or equal to
FIFO
FIFO_THRESHOLD.
Data to
packet
engine
a) Single packet in FIFO
FIFO
Data
f rom
MCU
Data already sent
to packet engine
Data
pending
f rom MCU
b) Packet longer than FIFO
Figure 9. Ways in which the FIFO can be used during transmit mode
FSON ^{strPoLbSLeRloXcksetrdo,be}
Sync ^{word detected}
FIFthOrebsyhteosldreach
FIFthOrebsyhteosldgo ^under
RF data
RX mode:
PKT
FIFO
Preamble
Sync word
Data
FSON ^{stroPbLeSLTloXcksetrdo,be}
FIFthOrebsyhteosldreach
FIFO ^{empPtyaccokemtptlreatnesmission}
TX mode:
MCU data
PKT
FIFO
Figure 10. FIFO and PKT timing diagram
SWRS042A
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