Echelon FT 5000 EVB - Manual (Page 16)

8 FT 5000 EVB Hardware Details
LCD
The FT 5000 EVB includes a 4 x 20 character LCD with a yellow-green backlight from Newhaven
Display International Inc (Part No. NHD-0420D3Z-FL-GBW). The LCD is connected to the FT 5000
Smart Transceiver IO0 and IO1 pins (via the I
2 C interface). For more information about this LCD, see
its data book at www.newhavendisplay.com/specs/NHD-0420D3Z-FL-GBW.pdf .
Joystick
The FT 5000 EVB includes a 4-way joystick with center push button from ALPS ® Electric Co (Part
No. SKQUCAA010). The joystick is connected to a 74HC165 8-bit parallel-in/serial-out shift
register, and data is shifted on the FT 5000 Smart Transceiver IO4 (clock) and IO5 (data) pins, with a
latch strobe on IO6 (active low to capture). For more information about this joystick, go to the ALPS
Web site at
www3.alps.com/WebObjects/catalog.woa/E/HTML/Switch/Tact/SKQU/SKQUAAA010.html.
Service Pin and Reset Buttons and LEDs
The FT 5000 EVB includes a Service button and a Reset button that have corresponding LEDs.
You can use the Service Pin button to send a service pin message from an evaluation board. You will
use the Service Pin button when you install the device with the LonMaker tool or Mini kit, as
described in the FT 5000 EVB Examples Guide. You can use the Service LED to identify the device
state (applicationless, unconfigured, configured), and you can also use it to provide additional
application-specific information.
You can use the Reset button to reset the FT 5000 EVB when an application running on the board
appears to have failed, or to test the reset behavior of an application loaded on the board. The Reset
LED illuminates when you press the Reset button, or the FT 5000 Smart Transceiver is reset.