XE1203SKC868XE2 Semtech, XE1203SKC868XE2 Datasheet - Page 20

• Manufacturer Part Number: XE1203SKC868XE2
• Description: KIT STARTER FOR XE1203 868MHZ
• Manufacturer: Semtech
• Series: TrueRF™r
• Type: Transceiver, ISMr

Specifications of XE1203SKC868XE2

• Frequency: 868MHz
• For Use With/related Products: XE1203 (868MHz)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

5.2
5.2.1
The XE1203F has several operating modes and configuration parameters which can be programmed by the user
or the application. In addition, status information may be read from the circuit. Some of the operating modes, the
status information and the configuration parameters are stored in a series of internal Configuration and Status
Registers that can be accessed by the microcontroller through the 3-wire serial interface.
There are seven variable Configuration and Status Registers, as listed below in Table 9.
All the bits that are referred to as “reserved” in this section should be set to “0” during write operations.
When operating the XE1203F, it might by useful to quickly switch between two pre-defined operating modes, to
save time and traffic on the 3-wire serial interface bus. This may occur when the XE1203F is required to switch
quickly between receive and transmit mode, when it has to operate on two different carrier frequencies, or when it
has to switch between the high linearity mode B and the high sensitivity mode A. For that purpose, the five
parameters stored in the SWParam Configuration Register are duplicated: the configuration set#1 and the
configuration set #2.
© Semtech 2008
Name
ConfigSwitch
RTParam
FSParam
SWParam
DataOut
ADParam
Pattern
CONFIGURATION AND STATUS REGISTERS
/en
so
si
sck
The ConfigSwitch Register
High impedance
Description
1-bit data to switch between 2 sets of
user-predefined
Configuration Registers
Receiver and transmitter parameters
LO,
frequency parameters
2 sets of user-predefined configuration
registers
Status register which can be read
through the 3-wire serial interface
Additional parameters
Reference
recognition” feature
Figure 15: Read sequence of configuration register at address 0
Bitrate,
Table 9: Configuration and Status Registers List
pattern
A(4)
Deviation
for
A(3)
the
and
SWParam
A(2)
“pattern
20
other
A(1)
A(0)
(bits)
1 x 1
2 x 8
3 x 8
6 x 8
2 x 8
5 x 8
4 x 8
Size
D(7)
High impedance
XE1203F
(binary format)
00001 - 00010
00011 - 00101
00110 - 01011
01100 - 01101
01110 - 10010
10011 - 10110
Address
00000
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