CC2400_08 Datasheet, PDF (26/84 Pages) Texas Instruments – 2.4 GHz Low-Power RF Transceiver

CC2400
Pin name
SCLK
SI
SO
CSn DIO/ DCLK/ RX
TX
GIO1*
PKT FIFO
Pin number
32
33
34
31
29
30
27
28
21
Direction
I
I
O
I
I/O
O
I
I
O
Buffered
SCLK
SI
SO
CSn -
FIFO (RX)
(TX)
(GIO1)
mode
Buffered
SCLK
SI
SO
CSn PKT
FIFO (RX)
(TX)
(GIO1)
mode with
Packet
handling
Un-buffered SCLK
SI
SO
CSn DIO
DCLK (RX)
(TX)
(GIO1)
mode
NOTE: Pin functions in parentheses are optional
* The use of GIO1 and GIO6 are selected in register IOCFG (address 0x08)
Table 15. Pin configuration
GIO6*
35
O
(GIO6)
(GIO6)
(GIO6)
Buffered RF Mode:
CC2400
CSn
SI
SO
SCLK
Data &
Control
µC
GIO1
MOSI
MISO
SCLK
Other Circuit
CSn
SI
SO
SCLK
GIO2
Unbuffered RF Mode:
CC2400
Control
CSn
SI
SO
SCLK
DIO/PKT
DCLK/FIFO
Data
µC
GIO1
MOSI
MISO
SCLK
Full hardware support for packet handling :
CC2400
CSn
SI
SO
SCLK
Data &
Control
µC
GIO1
MOSI
MISO
SCLK
DIO/PKT
DCLK/FIFO
RX
TX
GIO1
GIO6
Control
GIO2
GIO3
GIO4
GIO5
GIO6
GIO7
Figure 8. Microcontroller interface
SWRS042A
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