Echelon IzoT NodeBuilder - Manual (Page 133)

Transceiver Type Select the transceiver type supported by the Neuron Chip or Smart
Transceiver model selected in the Neuron Chip Model property. Each
transceiver type identifies a unique set of transceiver parameters that are
included in the application image. The default transceiver type is
TP/FT-10.
Select <Default> to use the project default transceiver. You can set the
default transceiver in the Project tab of the NodeBuilder Project
Properties dialog. To access this tab, click Project, click Settings, and
then click the Project tab, or right-click the Project folder in the Project
pane, click Settings on the shortcut menu, and then click the Project
tab.
Neuron Chip Model Select the Neuron Chip or Smart Transceiver model supported by the
hardware platform selected in the Platform property. The default
Neuron Chip model is FT 6000
External Clock
Speed
Displays the frequency of the external crystal used for the Neuron Chip
or Smart Transceiver model selected in the Neuron Chip Model
property.
For 6000 Series chips, the external crystal has a frequency of 10MHz;
however, you can change the system’s internal clock speed from 5MHz
to 80MHz. To do this, you change the frequency at which the Neuron
Chip or Smart Transceiver runs in the Clock Multiplier property.
For 3100 Series chips, you can select a different clock speed from the
list of those available for the selected Neuron Chip and transceiver type,
or for the selected Smart Transceiver. This property is unavailable for
those Neuron Chip or Smart Transceiver models that support only one
external clock speed. See your Neuron Chip or Smart Transceiver data
book for more information.
Clock Multiplier
For 6000 Series chips, you can select the frequency at which the Neuron
Chip runs to modify the system clock speed. You can select multipliers
of ½, 1, 2, 4, and 8. The default multiplier is 8.
This property is fixed at ½ for the 3100 chip series.
Note: If you modify this property and your NodeBuilder project is not
associated with a LonMaker network, you must associate the
NodeBuilder project with a LonMaker network and then load the device
application with the IzoT NodeBuilder tool to implement the change. If
you load the device application with the IzoT Commissioning tool
without using the IzoT NodeBuilder tool’s automatic load after build
feature, the device may not use the correct clock speed.
System Clock The effective clock speed of the internal system. For 6000 Series chips,
this is the product of the External Clock Speed and the Clock
Multiplier. The default internal system clock speed is 80.00 MHz (the
crystal’s speed external clock speed of 10MHz multiplied by the default
clock multiplier of 8), and it may be as low as 5 MHz (10MHz * ½).
Note: The 5.00 MHz system clock setting is intended only to facilitate
backward compatibility with older designs that cannot scale to higher
clock rates. There is no power consumption advantage to using 5.00
MHz over 10.00 MHz.
For 3100 Series chips, this is the same value as the External Clock
Speed multiplied by ½.
IzoT NodeBuilder User's Guide 119