XE1205
7.2
CONFIGURATION AND STATUS REGISTERS
The XE1205 has several operating modes, configuration parameters and internal status registers that may be accessed
by the microcontroller via the SPI_CONFIG interface.
The switching pins SW(1:0) allows switching between one of the four operating modes (sleep, stand-by, receive,
transmit) when MCParam_Select_mode is high. If MCParam_Select_mode is low, the modes are defined by the register
through the SPI_CONFIG interface and SW(1:0) may be used as an output to control, for example, an antenna switch.
7.2.1
Configuration register: general description
The description of the registers which are useful for the user is given in Table 16 below:
Name
MCParam
Size
5x8
Address
0-4
Description
Main parameters common to transmit and
receive modes
IRQParam
TXParam
RXParam
OSCParam
TParam
2 x8
1x8
9x8
2x8
12 x 8
5-6
7
8-16
17-18
19-30
Interrupt registers
Transmitter parameters
Receiver parameters
Oscillator parameters
Test and special settings
Table 16: configuration registers
All the bits that are referred to as “reserved” in this section should be set to “0” during write operations.
? Semtech 2008
28
www.semtech.com
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