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ARF868 Radio Modems- Guide utilisateur / User guide version V2.2.3
Register
Command mode entry Timeout at 9.6kbps at product start-up.
S241
Re-emitting time out (when S222=2)
S243
Adjustable from 0 to 65535 by step of 1ms
S250
1 à 65535 : Guard time by step of 1 ms
S252
S253
Network address: from 1 to 254
Radio data rate valid only with continuous asynchronous
S254
Radio data rate valid only with asynchronous continuous
11: 10Kbps (Legacy X3-PRO)
S256
Broadcast function : 65535
Loopback feature management
0: Loopback feature OFF
S257
1: RF loopback on Magic Word detection
2: RF loopback ONLY
S258
from 0000 0000 to FFFF FFFF
Note1 : the Autobaud mode authorises the modem to synchronise itself at switching on to the speed of the serial link, provided it is configured
in 8 bits,1 stop bit, no parity. To trigger this procedure the monitoring equipment must transmit, on the serial link, the character: <U> (see §
4.1 self-detection command). After correct execution of the self-detection command, reading register S210 (ATS210 ?) will return the UART data
rate value identified in the table (value 3 to 7). It will be memorised on recognition of the AT&W command.
Note2 : in the absence of any other special request, the modem internal switches (factory settings) are set to the auto mode (identical to the
S215 Fisher position = 4).
Note3 : the UART data rate should be chosen as close as possible to the radio data rate.
This is to limit the use of the buffer memory zone and activation of the RTC/CTS UART data rate control signals. E.g. 1: for a radio data rate of
57.6Kbps (S254=8), the choice of UART data rate of 57.6Kbps (S210=6) would be ideal. E.g. 2: For a UART data rate of 9.6Kbps (S210=3), the
radio data rate of 9.6Kbps(S254= 3) is the best possible choice.
If it is not possible to bring the UART and Radio data rates close together the 1024 octet buffer memory will compensate for the differences in
speed, provided this difference is not significant and/or the size of the data for transmission is limited.
In all other cases, only the use of the UART data rate control (S216=1) enables the integrity of the data transmitted to be guaranteed.
Note4 : the default choice of manual exiting from the mode is suitable for use during development, when the user needs to maintain control
over the exit from the command mode.
Programming of a timeout is recommended for use in operation, to enable an automatic return by the modem into the communication mode if a
Content
0 : disabled
1 : enabled
Repeater mode :
0 : no repeater
Source address (or local)
from : 1 to 65535
Network number
no network : 0
255=broadcast
mode:
1: 2,4Kbps
3: 9,6Kbps
6 : 38,4kbps
8: 57,6Kbps
Legacy X3-PRO
12: 57.6Kbps
Destination address :
From 0 to 65534
Magic Word
Default value
1
0
0
Factory pre-ini-
Used in the addressed mode. This register contains the
tialized
0
11 and 12 : For compatibility with X3Pro modems
1
In addressed mode, this register must be set with the
1
address of the modem to achieve.
0 > no magic word processing
0
0000 0000
Comments
address of the modem
1 > (see note 6)
2 > (see note 7)
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