PIXIE-PXMC-DIL Flexipanel, PIXIE-PXMC-DIL Datasheet - Page 6

• Manufacturer Part Number: PIXIE-PXMC-DIL
• Description: Zigbee / 802.15.4 Modules & Development Tools PixieMAC Coordinator DIL
• Manufacturer: Flexipanel

Specifications of PIXIE-PXMC-DIL

• Wireless Frequency: 2.4 GHz to 2.5 GHz
• Modulation: DSSS OQPSK
• Output Power: 1 mW
• Antenna: G-Antenna
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

commercial products, but can be useful for one-off custom designs, since no network needs to be started
or joined.
Short-address communications
In order to be able to share airspace, and to permit devices to learn who to talk to at installation time
rather than at the factory, commercial systems need use short-addressing. The coordinator will start and
assign itself a short address (2 bytes) and a network-wide PAN ID (2 bytes). Then other devices ask to
join the network and the coordinator will remember their long address and allocate a short address in
return. The long address is only used thereafter if the network reinitializes and devices need discover the
new frequency and PAN ID. Typically the joining process is only permitted to occur by pressing a
‘bind’ button on the coordinator. This ensures the correct device joins the correct network in a secure
manner.
Sleep Management
The PXMS versions of the firmware are allowed to sleep. They are put into sleep mode when the sleep
pin goes high; during sleep, the RTS pin will output high.
Sleepy devices can only receive unicast data from the coordinator; to do so they must specifically request
it using the poll request command. The coordinator will also need to remember which devices sleep in
order to know whether or not to cache their messages.
Notation, Byte & Bit order
All numbers in this documentation are in decimal unless prefixed with 0x, in which case they are
hexadecimal. Index counting starts at zero, so the first byte of a message is byte zero.
Multi-byte data is transmitted least-significant byte first (‘little-endian’), as is standard in the IEEE
801.15.4 specification.
Copy Protection
To protect against copying, if the PixieMAC firmware is run on any hardware except FlexiPanel Pixie
products, it will cease to function after approximately two minutes. Steinlaus tags are also included in
the code.
Evaluation Kit
The easiest way to get to know PixieMAC is with the ZigBee Evaluation Kit available from FlexiPanel.
This will also require a Microchip ICD2 In-Circuit Debugger to program the firmware into the Pixie /
Pixie Lite supplied.
In the evaluation boards, the I/O pins are connected as follows:
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14-Jan-08
Number
Pin
10
11
17
19
21
7
Pin Name
PixieMAC DS502-2
nReset
Sleep
RTS
CTS
RxD
TxD
Description
Switch labeled “EP2 A2”
LED labeled “A4 / EP5 / RTS”
Switch labeled “Config SW”
Ensure jumper A8 – A9 is fitted.
Reset push switch
Serial output (8N1, 115200 baud)
Serial data input (8N1, 115200 baud)
FlexiPanel Ltd
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www.FlexiPanel.com