9XTend™
OEM
RF
Module
–
Product
Manual
v1.2.4
©
2005
MaxStream,
Inc.
Confidential
&
Proprietary
34
ST (Time before Sleep) Command
AT Command: ATST
Binary Command: 0x02 (2 decimal)
Parameter Range: (ATAT+3) – 0x7FFF
[x
100
milliseconds]
Default Parameter Value: 0x64 (100 decimal)
Number of bytes returned: 2
Related Commands: SM (Sleep Mode), LH
(Wake-up Initializer Timer), HT (Time before
Wake-up Initializer)
<Sleep Mode (Low Power)> ST Command is used
to set/read the period of time (milliseconds) in
which the module remains inactive before
entering Sleep Mode.
For example, if the ST Parameter is set to 0x64
(100 decimal), the module will enter into Sleep
mode after 10 seconds of inactivity (no
transmitting or receiving).
This command can only be used if Cyclic Sleep or
Serial Port Sleep Mode settings have been
selected using SM (Sleep Mode) Command.
TP (Board Temperature) Command
AT Command: ATTP
Binary Command: 0x38 (56 decimal)
Parameter Range (read-only): 0– 0x7F
Number of bytes returned: 1
Related Commands: WN (Warning Data)
<Diagnostics> TP Command is used to read the
current temperature of the board.
Sample Output: 26 C [when ATCF = 0]
1A [when ATCF = 1]
26 [when ATCF = 2]
TR (Transmit Error Count) Command
AT Command: ATTR
Binary Command: 0x1B (27 decimal)
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0
Number of bytes returned: 2
Related Commands: RR (Retries)
<Diagnostics> TR Command is used to report the
number of retransmit failures. This number is
incremented each time a packet is not
acknowledged within the number of retransmits
specified by RR (Retries) Command. It therefore
counts the number of packets that were not
successfully received and were subsequently
dropped.
TR Parameter is not non-volatile and will therefore be reset to zero when the module is reset.
TT (Streaming Limit) Command
AT Command: ATTT
Binary Command: 0x1A (26 decimal)
Parameter Range: 0 – 0xFFFF
Default Parameter Value: 0 (disabled)
Number of bytes returned: 2
Related Commands: RN (Delay Slots)
<Networking & Security> TT Command is used to
set/read the limit on the number of bytes that
can be sent out before a random delay is issued.
If a module is sending a continuous stream of RF
data, a delay is inserted which stops its
transmission and allows other modules time to
transmit (once it sends TT bytes of data).
Inserted random delay lasts between 1 & ‘RN +
1’ delay slots, where each delay slot lasts 38 ms.
TT command can be used to simulate full-duplex behavior.
TX (Transmit Only) Command
AT Command: ATTX
Binary Command: 0x3F (63 decimal)
Parameter Range: 0 – 1
Parameter
Value
Configuration
0 TX
and
RX
1 TX
only
Default Parameter Value: 0
Number of bytes returned: 1
<RF Interfacing> TX Command is used to
set/read the transmit/receive behaviors of the
module. Setting a module to TX-only may reduce
latency because the transmitting module will
never be "stuck" receiving data from other
modules.
