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+***** How to program Zigbit? *******
+
+It is possible to programming Zigbits with
+
+    ISP
+    JTAG
+    Using pre-programmed serial bootloader
+
+
+Using JTAG will give the flexibility to debug the device with a debugger like JTAGICEmkII, wherein with ISP only programming is possible.
+
+The microcontroller that is part of the Zigbit module is the ATmega1281. So, it is possible to use JTAG or ISP programming.
+
+JTAG :
+
+Connectivity JTAG Header(Pin) <--> ZigBit module (Pin)
+
+TCK (1) ---TCK (pin 29)
+TMS (5) ---TMS (pin 26)
+TDI (9) ---TDI (pin 27)
+TDO (3) ---TDO (pin 28)
+nTRST (8) ---NC
+nSRST (6) ---RESET (pin 8)
+VTref (4) ---vCC (pins 24-25)
+GND (2,10) --- GND (pins 22-23)
+
+
+ISP:
+
+Connectivity ISP Header (Pin)<--> ZigBit module (Pin)
+
+MOSI(pin 1) --- USART0_TXD (pin 39)
+MISO(pin 4) --- USART0_RXD (pin 38)
+SCK (pin 3) --- SPI_CLK (pin 1)
+RESET(pin 5) --- RESET (pin 8)
+GND (pin 6) --- GND (pins 22-23)
+VCC (pin 2) --- VCC (pins 24-25)
+
+
+Serial Bootloader:
+
+The Zigbit modules are preprogrammed with a serial bootloader. It is possible to use this serial bootloader to program the application code.
+
+The Serial Bootloader is a stand alone package that comes with the Serial Bootloader User Guide(AVR2054) and a software package that
+contains a Bootloader PC tool,bootloader source files and precompiled bootloader firmware images.
+Click on the CD-icon [1] to download the serial bootloader software package.
+
+
+[1] ... http://www.atmel.com/Images/AVR2054.zip
+\ No newline at end of file