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參數(shù)資料
| 型號： | CC113LRTKT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQCC20 |
| 封裝： | 4 X 4 MM, GREEN, PLASTIC, VQFN-20 |
| 文件頁數(shù)： | 40/75頁 |
| 文件大?。?/td> | 1454K |
| 代理商： | CC113LRTKT |
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CC113L
SWRS108A
Page 45 of 68
26 Configuration Registers
The
configuration
of
CC113L is done by
programming 8-bit registers. The optimum
configuration data based on selected system
parameters are most easily found by using the
SmartRF
Studio
software
Complete
descriptions of the registers are given in the
following tables. After chip reset, all the
registers have default values as shown in the
tables. The optimum register setting might
differ from the default value. After a reset, all
registers that shall be different from the default
value therefore needs to be programmed
through the SPI interface.
There are 8 command strobe registers, listed
in Table 30. Accessing these registers will
initiate the change of an internal state or
mode. There are 43 normal 8-bit configuration
registers listed in Table 31, and SmartRF
Studio [4] will provide recommended settings
for these registers
2.
2 Addresses marked as “Not Used” can be part
of a burst access and one can write a dummy
value
to
them.
Addresses
marked
as
There are also 8 status registers that are listed
in Table 32. These registers, which are read-
only, contain information about the status of
CC113L.
The RX FIFO is accessed through one 8-bit
register. During the header byte transfer and
while writing data to a register, a status byte is
returned on the SO line. This status byte is
Table 33 summarizes the SPI address space.
The address to use is given by adding the
base address to the left and the burst and
read/write bits on the top. Note that the burst
bit has different meaning for base addresses
above and below 0x2F.
“Reserved” must be configured according to
SmartRF Studio
Address
Strobe Name
Description
0x30
SRES
Reset chip.
0x31
Reserved
0x32
SXOFF
Turn off crystal oscillator.
0x33
SCAL
Calibrate frequency synthesizer and turn it off. SCAL can be strobed from IDLE mode
without setting manual calibration mode (MCSM0.FS_AUTOCAL=0)
0x34
SRX
In IDLE state: Enable RX. Perform calibration first if MCSM0.FS_AUTOCAL=1.
0x35
Reserved
0x36
SIDLE
Enter IDLE state
0x37 - 0x38
Reserved
0x39
SPWD
Enter power down mode when CSn goes high.
0x3A
SFRX
Flush the RX FIFO buffer. Only issue SFRX in IDLE or RXFIFO_OVERFLOW states.
0x3B - 0x3C
Reserved
0x3D
SNOP
No operation. May be used to get access to the chip status byte.
Table 30: Command Strobes
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