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ARF868 Radio Modems - User guide version V1.8.1
22
Page
of 26
Register
Content
Value by
default
Comments
S210
UART data rate:
0 : Autobaud
1 : 2.4 kbps
2 : 4.8 kbps
3 : 9.6 kbps
4 : 19.2 kbps
5 : 38.4 kbps
6 : 57.6 kbps
7 : 115.2kbps
8 : 1.2kbps
3
See note 1 & note 3
The other parameters of the serial interface are :
•
1 stop bit -> fixed
•
Parity -> See S212
•
Data lenght -> Voir S211
S211
UART data lenght :
0 : 7 Bits
1 : 8 Bits
1
S212
UART parity :
0: No parity
1: Parity
2: Odd parity
0
S214
Input character in command mode :
ASCII code (except 0)
0 : Disabling entry into command mode by UART.
43
The input code is 3 times the character :
•
Example : +++ if the character programmed in S214 is
the ASCII code of «+» wether 43
•
Value between 1 and 255
S215
UART interface:
0: Internal switches positions
1: RS232
2: RS485, no Term mode
3: RS485, Term mode
4: Auto
1
Unless special request, the position of the internal switch
is on modem ARF868: Auto mode (same as S215 = 4). See
note 2
S216
RTS/CTS UART flow control:
0 : Inactive
1 : Active
0
See note 3
S217
Transmission start-up Timeout :
0 : no timeout
1 to 6000 : timeout by step of 1 ms
3
If #0, transmission starts when the timeout has passed, if
the threshold of the S218 register is not reached.
See note 5
S218
Transmission start-up threshold :
From 1 to 1024 octets
30
The transmission starts when the number of bytes in FIFO
memory to reach this threshold.
See note 5
S220
Communication mode
0 : Transparent
1 : Addressed
0
S222
Radio protocol
3: Continuous Asynchronous
4: Continuous Asynchronous «legacy X3Pro»
3
S230
RSSI mode:
0 : no RSSI
1 : Exit «RSSI frame» on UART
4 : Exit «permanent RSSI» on UART
0
S231
RF radiated power:
0 : 27 dbm
1 : 25 dbm
2 : 23 dbm
3 : 20 dbm
4 : 17 dbm
5 : 14 dbm
6 : 10 dbm
0 : on ARF7940
and 7941 ver-
sions
5 : on ARF7942
and ARF7943
versions