User Manual

XBee®/XBee‐PRO®RFModules‐802.15.4‐v1.xEx[2011.06.1]
©2011DigiInternatonal,Inc. 44
D7 (DIO7 Configuration) Command
<I/O Settings> The D7 command is used to
select/read the behavior of the DIO7 line (pin 12).
Options include:
• CTS flow control
• Analog-to-digital converter
• Digital input
•Digital output
• RS485 TX Enable (this output is 3V CMOS
level, and is useful in a 3V CMOS to RS485
conversion circuit)
D8 (DI8 Configuration) Command
<I/O Settings> The D8 command is used to
select/read the behavior of the DI8 line (pin 9).
This command enables configuring the pin to
function as a digital input. This line is also used
with Pin Sleep.
DA (Force Disassociation) Command
<(Special)> The DA command is used to immedi-
ately disassociate an End Device from a Coordi-
nator and reattempt to associate.
DB (Received Signal Strength) Command
<Diagnostics> DB parameter is used to read the
received signal strength (in dBm) of the last RF
packet received. Reported values are accurate
between -40 dBm and the RF module's receiver
sensitivity.
Absolute values are reported. For example: 0x58 = -88 dBm (decimal). If no packets have been
received (since last reset, power cycle or sleep event), “0” will be reported.
DH (Destination Address High) Command
<Networking {Addressing}> The DH command is
used to set and read the upper 32 bits of the RF
module's 64-bit destination address. When com-
bined with the DL (Destination Address Low)
parameter, it defines the destination address used
for transmission.
An module will only communicate with other
modules having the same channel (CH parame-
ter), PAN ID (ID parameter) and destination address
(DH + DL parameters).
AT Command: ATD7
Parameter Range:0 - 5
Parameter Configuration
0 Disabled
1CTS Flow Control
2n/a
3DI
4DO low
5DO high
6 RS485 TX Enable Low
7 RS485 TX Enable High
Default Parameter Value:1
Parameters 3-7 supported as of firmware
version 1.x.A0
AT Command: ATD8
Parameter Range:0 - 5 
(1, 2, 4 & 5 n/a)
Parameter Configuration
0 Disabled
3DI
Default Parameter Value:0
Minimum Firmware Version Required: 1.xA0
AT Command: ATDA
Minimum Firmware Version Required: v1.x80
AT Command: ATDB
Parameter Range [read-only]: 
0x17-0x5C (XBee), 0x24-0x64 (XBee-PRO)
AT Command: ATDH
Parameter Range: 0 - 0xFFFFFFFF
Default Parameter Value: 0
Related Commands: DL (Destination Address
Low), CH (Channel), ID (PAN VID), MY (Source
Address)