AeroComm Corporation LX2400 Manuel D’Utilisation

09/22/00                                                                                                                                                                                  
Preliminary

13

3.2.6.1.2  CHANNEL parameter

The LX2400S can be programmed to one of ten different channels. Client mode transceivers will receive and
transmit to a Server on the same channel as programmed.  Servers will receive and transmit to Clients on the
same channel as programmed. CHANNEL can be programmed with a value ranging from 0 to 9.

3.2.6.1.3  BAUDRATE parameter

This two-byte value determines the baud rate used for communicating over the serial interface to the
LX2400S.  TABLE 3 lists values for some popular baud rates.  Baud rates below 1200 are not supported.
When programming a baud rate the Host must program the associated TIMEOUT value.  This value is not
used if the TST_MODE line on the connector is pulled low at reset. The baud rate will be forced to 9600.

For Baud Rate values other than shown in Table 3, the following equations can be used:

BAUD = (18.432E+06/(32*desired baud rate))

BAUDH= High 8 bits of BAUD (base16)
BAUDL = Low 8 bits of BAUD (base16)

3.2.6.1.4  TIMEOUT parameter

The TIMEOUT value is the amount of time the LX2400S will allow between bytes when receiving serial
bytes from the Host and receiving bytes on the RF link.  It is equal to between two and four byte times.
TIMEOUT can always be less than the value specified or calculated, but, never greater.

57600*

00H

0AH

FDH

38400*

00H

0FH

FCH

28800*

00H

14H

FBH

19200

00H

1EH

F9H

14400

00H

28H

F7H

9600

00H

3CH

F3H

4800

00H

78H

E7H

2400

00H

F0H

CEH

1200

01H

E0H

9CH

* Not Available with LX2400S-3A

For Timeout values other than shown in Table 3, the following equations can be used:

IBT = 10/desired baud rate
TIMEOUT = (base16) High 8 bits of  [2^16-(24/18.432E+06/IBT)]