Silego Technology Inc.
Page 6 of 41
08/15/17
GreenPAK Advanced
Development Platform
3.2 Functional Description
3.2.1 Power Supply
The main power source of the GreenPAK Advanced Development Platform is the USB power line. The Development Platform
can deliver power from 0 to 5.5 V. To provide this power range, the Development Platform is equipped with a boost converter. A
Signal generator with a buffered output controls the GreenPAK chip power rail. For more information about GreenPAK electrical
specification, please refer to the datasheet.
3.2.2 USB Communication
The platform has the USB communications interface that uses the USB mini-B connector, as shown in
Figure 2.
This interface
provides communication with the software control tool and supplies power to the platform, as discussed in
Power Supply
chapter.
3.2.3 GND Connections
There are 6 GND pins on the left side, 6 pins and 1 header on the right side. These can be used for test equipment (oscilloscope,
multimeter etc.) ground reference connection or to connect external test circuitry ground.
3.2.4 Pin Test Points
Each GreenPAK chip pin including VDD has its own observation test point. These test points were designed only for observation.
To connect an external signal source use a software-controlled expansion connector.
3.2.5 LEDs
All the pins except Pin2 can be connected to buffered LEDs. This option allows visualization of digital levels on chip pins. There
are 2 selection modes:
• Buffered LED (with high impedance input)
• Inverted Buffered LED (with high impedance input)
This option can be enabled in GreenPAK Designer.
3.2.6 Socket Connector
The GreenPAK Advanced Development Platform should be used with a detachable socket board. Its main purpose is to connect
the GreenPAK chip to the Development Platform. It‘s easy to use the programmed chip in external circuits, or to measure current
consumption of the project.
Figure 2. USB Interface
