Data Sheet

Table Of Contents

Chips and readers- USER’S GUIDE

UG 19

Version 1.0

MANAGING THE RF FIELD

Possible operations you can perform on the RF field are the following :

" Cut RF emission, mainly when couplers are powered on battery

" Start RF emission

" «Reset» RF field (i.e. cut it for 20 ms in order to reset any halted chip in the field)

HOW TO RESET THE RF FIELD ?

This command will cut the RF field for 20 ms in order to reset all chips that are in the

field.

! ActiveX method : Mx.ResetField

! C Library : Clib_w_ResetField ()

! Low level : SET_STATUS command

tsoH h08 h4F h04 h00 h10 h00

relpuoC h4F h09 h00

HOW TO ASLEEP THE COUPLER

Just use the disable command which will cut the RF field so that no energy is wasted.

! ActiveX method : Mx.Disable

! C Library : Clib_w_Disable ()

! Low level : DISABLE command

tsoH h08 hDA hCB hAD h00

relpuoC h09 h00

HOW TO WAKE UP THE COUPLER

! ActiveX method : Mx.Enable

! C Library : Clib_w_Enable ()

! Low level : ENABLE command

tsoH h08 hEA hAD hCB h00

relpuoC h09 h00

Important note

Low level command : You have to send this command in a window of 16 ms so that the

coupler catches it. To be sure that this command is detected, send it twice, with no more

than 10 ms between the 2 commands sending. This is automatically managed by the

ActiveX method.