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MK (Address Mask) Command
<AT Command: Networking> MK Command is used to set the radio modem address mask. All RF
packets contain the Destination Address of the transmitting radio modem. When an RF packet is
received, the transmitter's Destination Address is logically "ANDed" (bitwise) with the Address
Mask of the receiver. The resulting value must match the Destination Address or the Address Mask
of the receiver for the packet to be received and sent out the receiving modem serial port. If the
"ANDed" value does not match either the Destination Address or the Address Mask of the receiver,
the packet is discarded. (All "0" values are treated as "irrelevant" values and ignored.)
AT Command: MK
Parameter Range: 0 - 0xFFFF
# of bytes returned: 2
Default Parameter Value: 0xFFFF (When set to this value, the Destination Address of the trans-
mitter must exactly match the Destination Address of the receiver.)
Related Commands: DT (Destination Address), HP (Channel)
NB (Parity) Parameter
<Non-AT Settable Parameter: Serial Interfacing>
NB Parameter allows parity for the modem to be
changed. Parity is an error detection method in
which a bit (0 or 1) is added to each group of bits
so that it will have either an odd number of 1's or
an even number of 1's. For example, if parity is
odd, then any group of bits that arrives with an
even number of 1's must contain an error.
PW (Pin Wake-up) Parameter
<Non-AT Settable Parameter: Sleep (Low
Power)> Under normal operation, a radio modem
in Cyclic Sleep Mode cycles from an active state to
a low-power state at regular intervals until data is
ready to be received. If PW Parameter is set to 1,
the SLEEP Pin (Pin 2 of the embedded OEM RF
Module) can be used to awaken the modem from
Cyclic Sleep. If the SLEEP Pin is de-asserted
(low), the radio modem will be fully operational
and will not go into Cyclic Sleep. Once SLEEP is asserted, the radio modem will remain active for
the period of time specified by ST (Time before Sleep) Command, and will return to Cyclic Sleep
Mode (if no data is ready to be transmitted). PW Command is only valid if Cyclic Sleep has been
enabled using SM Command.
RE (Restore Defaults) Command
<AT Command: AT Command Options> RE Command restores all AT-settable parameters to fac-
tory default settings. However, RE Command will not write the default values to non-volatile mem-
ory. Unless the WR (Write) Command is issued after the RE Command, the default settings will not
be saved in the event of radio modem reset or power-down.
AT Command: RE
Related Command: WR (Write)
Parameter Ranges: 0 - 4
Parameter
Configuration
0
8-bit (no parity) or 7-
bit (with any parity)
1
8-bit even parity
2
8-bit odd parity
3
8-bit mark parity
4
8-bit space parity
Default Parameter Value: 0
Number of bytes returned: 1
Parameter Ranges: 0 - 1
Parameter
Configuration
0
disabled
1
enabled
Default Parameter Value: 0
Number of bytes returned: 1