0x00 = +16 dBm or 40 mW
0x01 = +22 dBm or 158 mW
UserTag
- this parameter is a user definable field intended for use as a location description or other identifying tag such as
a “friendly name”.
RmtTransDestAddr
- this parameter holds the default destination for transparent mode data packets and event packets.
This parameter defaults to the broadcast address, 0xFFFFFF.
HeartbeatInterval
- when set to 0x0000, all heartbeats are disabled. When set to 0xFFFF (default),
periodic heartbeats are disabled but the initial heartbeat at power up is enabled. The periodic heartbeat interval is scaled
1 second/count, and applies to DNT90Ms where sleep mode is disabled. DM90M radios with sleep mode enabled must
have periodic reports and/or ADC sampling enabled for heartbeats to be generated.
SystemId
- this parameter holds the ID for a DTN90 system. DNT90M systems that may physically overlap must have dif-
ferent system IDs.
AckEnable
- when this parameter is set to 1 and the DNT90M is in protocol mode, the originator will indicate in its trans-
mitted packet that an ACK message is expected from the packet’s destination node, which is passed on to the originator’s
host.
MaxUnicastFrames
- this parameter sets the maximum number of packets addressed to a specific node that will be
transmitted on a channel before switching to the next channel in the frequency hopping sequence.
MaxBcstFrames
- this parameter sets the maximum number of different broadcast packets that will be transmitted on a
channel before switching to the next channel in the frequency hopping sequence.
7.4.2 Bank 0x01 - System Settings
Bank
Location
Name
R/W
Size
Range
Default
0x01
0x00
Reserved
-
1
-
-
0x01
0x01
Reserved
-
1
-
-
0x01
0x02
Reserved
-
1
-
-
0x01
0x03
Reserved
-
1
-
-
0x01
0x04
BcstAttemptLimit
R/W
1
0..254
1
0x01
0x05
ArqAttemptLimit
R/W
1
1..255
10
0x01
0x06
Reserved
-
1
-
-
0x01
0x07
P2PReplyTimeout
R/W
1
0..255
10 (1 second)
0x01
0x08
RegistryTimeout
R/W
1
0..255
5 (seconds)
0x01
0x09
Reserved
-
1
-
-
Table 7.4.2.1
BcstAttemptLimit
- setting this parameter to 0 enables automatic broadcast message repeats based on the
ArqAttempt-
Limit
parameter value. Setting this parameter to a value between 1 and 254 specifies the number of broadcast message
repeats independent of the
ArqAttemptLimit
. This parameter should not be set to 0 if
ArqAttemptLimit
is set to 255.
ArqAttemptLimit
- this sets the maximum number of attempts that will be made to send a message on the RF link. Setting
this parameter to the maximum value of 255 is a flag value indicating that there should be no limit to the number of at-
tempts to send each packet (infinite number of attempts). This mode is intended for point-to-point networks in serial data
cable replacement applications where absolutely no packets can be lost.
©2012 by Murata Electronics N.A., Inc.
DNT90M Integration Guide (2012/09/17)
Page 37 of 74
www.murata.com
