XDM2510HP RFM, XDM2510HP Datasheet - Page 10

• Manufacturer Part Number: XDM2510HP
• Description: RF Modules & Development Tools 2.4 GHz WirelessHART Pin Version
• Manufacturer: RFM

Specifications of XDM2510HP

• Board Size: 1.05 in x 0.985 in
• Minimum Frequency: 2.4 GHz
• Minimum Operating Temperature: - 40 C
• Supply Voltage (min): 3.3 V
• Product: RF Modules
• Maximum Frequency: 2.4835 GHz
• Output Power: 8 dBm
• Antenna: U.FL Connector
• Supply Voltage (max): 5.5 V
• Supply Current: 18 mA
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.0 Boot Sequence
Following the active low assertion of /RESET IN, the XDM2510H completes its boot-up process by loading and
decrypting the application image and loading the operating parameters. During the boot process, the modules
output signals are not actively driven and the input signals are ignored. The duration of the boot process is de-
fined in Table 10.
8.0 Hardware Interfaces
8.1 /RESET IN
When this signal is asserted low, the XDM2510H is hardware reset until the signal is de-asserted. Note that the
XDM2510H may also be reset using the reset serial command. If a system is designed to assert /RESET IN after
the XDM2510H has completed its boot process, it is recommended the module be placed into deep sleep prior to
assertion of the /RESET IN signal.
8.2 /TIME
The XDM2510H has the ability to deliver network-wide synchronized timestamps. The XDM2510H sends a time
packet through its serial interface when one of the following occurs:
Use of the /TIME input is optional but has the advantage of being more accurate. The value of the timestamp is
taken within approximately 1 ms of receiving a /TIME signal assertion. The XDM2510H will send the time packet
to the local host microcontroller within 100 ms of the strobe. If the HDLC request is used, due to packet process-
ing the value of the timestamp may be captured several milliseconds after receipt of the packet. The real time de-
livered to the sensor processor is relative to the real-time clock on the Network Manager, which serves as the
Network Real Time Clock (NRTC).
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t
boot_delay
Boot Parameter
HDLC request for time is received.
Active-low /TIME signal is asserted.
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[e-mail]
Minimum
TIME
TX
t
strobe
Typical
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t
response
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Table 11
Figure 3
Figure 4
Maximum
6
Time Packet
Units
s
The time between power up and
serial interface availability
Comments
XDM2510H - 03/17/11
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