User manual

Blackfin DEV-BF548-Lite. DEV-BF548DA-lite Hardware User Manual
10
2 Functional Specification
Figure 2-1: Functional Block Diagram
Power connector and Power supply:
The supplied power supply should be used. It can deliver up to 2A at 12V.
The input voltage range of an alternative power supply must be between 6-16V!
The on-board DC/DC power supply generates 5V and 3.3V which are made available at the expansion
connectors.
The maximum current that can be drawn from the 5V is 2A, but take care this includes the current going
into the 3.3V regulator also, because this regulator is powered by the 5V. The maximum current that can
be drawn from the 3.3V is 1.5A but note that this means at least 1A additional load on the 5V connector.
The serial Port 0 (UART0, default Console IO) or Port1 (UART1) of the Core Module can be routed directly
to the USB Port (USB/UART Switch (S3).
An Ethernet controller (SMSC LAN9218) is connected to the data and address bus on the baseboard
providing a high speed 10/100MBit LAN Interface
An SD-Card connector is mounted on the board and is connected to the processors SD-IO Interface. With
the SD-Card one can make use of file IO Functions delivered with the BLACKSheep Software.
BLACKSheep supports SD-Cards and includes a FAT file system as well as the most relevant File IO
Functions. The complete BLACKSheep software package can be purchased from Bluetechnix.
The USB2.0 OTG connector interfaces with the processors on-chip (ADSP-BF548) USB Transceiver.