WI.DP1203-XXX-R DATASHEET

10

5. Operation Modes

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.

Depending on the ConfigSwitch 1-bit Register or the input level at the SWITCH pin, the XE1203F transceiver will

use either the SWParam configuration set#1 or the set #2. If the RTParam_Switch_ext configuration parameter is

low, then the SWParam configuration set is selected by the ConfigSwitch parameter – set#1 if ConfigSwitch is

“0”, set#2 if ConfigSwitch is “1”. If the RTParam_Switch_ext configuration parameter is high, then the SWParam

configuration set is selected by the SWITCH pin – set#1 if SWITCH is low, set#2 if SWITCH is high.

ConfigSwitch

Register

Switch pin

RTParam_switch_ext

configuration parameter

SWParam configuration set

selected

0

Switch is an output:

‘1’ in transmitter mode

‘0’ in the other mode

0

Set #1

SWParam_mode_1

SWParam_Power_1

SWParam_Rmode_1

SWParam_t_delsig_in_1

SWParam_freq_1

1

Switch is an output:

‘1’ in transmitter mode

‘0’ in the other mode

0

Set #2

SWParam_mode_2

SWParam_Power_2

SWParam_Rmode_2

SWParam_t_delsig_in_2

SWParam_freq_2

X

0

0

Set #1

SWParam_mode_1

SWParam_Power_1

SWParam_Rmode_1

SWParam_t_delsig_in_1

SWParam_freq_1

X

1

0

Set #2

SWParam_mode_2

SWParam_Power_2

SWParam_Rmode_2

SWParam_t_delsig_in_2

SWParam_freq_2

Table 4, ConfigSwitch, SWITCH pin and SWParam Configuration Register

For more information about the data operation modes, please refer to the XE1205 datasheet chapter:

Description.

Chapter

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