Texas Instruments CC2500 User Manual

CC2500
S
WRS040
C
Page
39
of
89
19
Radio Control
TX
19
,
20
RX
13
,
14
,
15
IDLE
1
CALIBRATE
8
MANCAL
3
,
4
,
5
SETTLING
9
,
10
,
11
RX
FIFO
_
OVERFLOW
17
TX
FIFO
_
UNDERFLOW
22
RXTX
_
SETTLING
21
FSTXON
18
SFSTXON
FS
_
AUTOCAL
=
00
|
10
|
11
&
SRX
|
STX
|
SFSTXON
|
WOR
SRX
|
WOR
STX
STX
TXFIFO
_
UNDERFLOW
STX
|
RXOFF
_
MODE
=
10
RXOFF
_
MODE
=
00
&
FS
_
AUTOCAL
=
10
|
11
SFTX
SRX
|
TXOFF
_
MODE
=
11
SIDLE
SCAL
CAL
_
COMPLETE
FS
_
AUTOCAL
=
01
&
SRX
|
STX
|
SFSTXON
|
WOR
RXFIFO
_
OVERFLOW
CAL
_
COMPLETE
SFRX
CALIBRATE
12
IDLE
1
TXOFF
_
MODE
=
00
&
FS
_
AUTOCAL
=
10
|
11
RXOFF
_
MODE
=
00
&
FS
_
AUTOCAL
=
00
|
01
TXOFF
_
MODE
=
00
&
FS
_
AUTOCAL
=
00
|
01
TXOFF
_
MODE
=
10
RXOFF
_
MODE
=
11
SFSTXON
|
RXOFF
_
MODE
=
01
TXRX
_
SETTLING
16
SRX
|
STX
|
SFSTXON
|
WOR
SLEEP
0
SPWD
|
SWOR
XOFF
2
SXOFF
CSn
=
0
CSn
=
0
|
WOR
(
STX
|
SFSTXON
)
&
CCA
|
RXOFF
_
MODE
=
01
|
10
TXOFF
_
MODE
=
01
FS
_
WAKEUP
6
,
7
S
R
X
Figure
15
: Complete
R
adio
C
ontrol
S
tate
D
iagram
CC2500
has a built
-
in state machine that is
used to switch between different operation
states (modes). The change of state is done
either by using command strobes or by
internal events such as TX FIFO underflow.
A simplified state diagram, together with
typical usage and cu
rrent consumption, is
shown in
Figure
5
on page
15
. The complete
radio control state diagram is shown in
Figure
15
. The numbers refer to the stat
e number
readable in the
MARCSTATE
status register.
This register is primarily for test purposes.
19.1
Power
-
On
Start
-
Up Sequence
When the power supply is turned on, the
system must be reset. One of the following two
sequences mus
t be followed: Automatic
power
-
on reset (POR) or manual reset.

Texas Instruments CC2500 Specifications

General

Brand	Texas Instruments
Model	CC2500
Category	Transceiver
Language	English