XE1203F
Name
ADParam_Clk_freq
ADParam_Invert
ADParam_RegBW
ADParam_Regfreq
ADParam_Regcond
ADParam_Xsel
ADParam_Resxosc
ADParam_enable_konnex
ADParam_Chge_thres
ADParam_Sync_thres
Bits Address Description
3-2 01110 CLKOUT frequency (if enabled)
00 -> 1.22 MHz (div ratio :32)
01 -> 2.44 MHz (div ratio :16)
10 -> 4.87 MHz (div ratio :8)
11 -> 9.75 MHz (div ratio :4)
1 01110 Inversion of Rx output data:
0 -> disabled
1 -> enabled
0 01110 Baseband filter bandwidth calibration:
0 -> enabled
1 -> disabled
7 01111 Period of baseband filter bandwidth calibration whilst Rx
enabled:
0 -> only at start-up of the receiver
1 -> 60 seconds (default mode) or 7 seconds (test mode)
6 01111 Baseband filter bandwidth calibration as a function of selected
bandwidth:
0 -> calibration restarted each time the bandwidth is changed
1 -> no calibration when the bandwidth is changed
5 01111 Selection of the XOSC load capacitance mode:
0 -> CL+C0 = 15 pF
1 -> CL+C0 = 11 pF, low current mode
4-1 01111 Selection of the value of the shunt resistor across ports TKA
and TKB for a third overtone XTAL operation:
0000 -> 3800 kΩ
0010 -> 4.65 kΩ
0100 -> 8.79 kΩ
0110 -> 3.22 kΩ
1000 -> 16.55 kΩ
1010 -> 3.79 kΩ
1100 -> 6.04 kΩ
1110 -> 2.81 kΩ
0001 -> 2.55 kΩ
0011 -> 1.78 kΩ
0101 -> 2.07 kΩ
0111 -> 1.56 kΩ
1001 -> 2.26 kΩ
1011 -> 1.66 kΩ
1101 -> 1.91 kΩ
1111 -> 1.48 kΩ
0 01111 Konnex mode:
0 -> disabled
1 -> enabled
7 10000 Enable programming of the sync and acquisition thresholds:
0 -> threshold are hard-coded and sync-loss counter is 50 bits
1 -> threshold are defined by BParam_Sync_thres and
BParam_Trac_thres
Sync loss counter is variable and defined by
ADParam_Sync_loss
6:0 10000 Barker mode sync acquisition threshold
ADParam_disable_data_bidir 7
ADParam_Trac_thres
6-0
10001
10001
DATA port bidirectional mode:
0 -> enabled
1 -> disabled: DATA = output, DATAIN = input
Threshold for tracking Barker mode
ADParam_Fix_bsync
© Semtech 2007
7 10010 bit synchronizer configuration:
0-> default configuration
1-> high-interference environment
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