User manual

CPU-12A-V1
XMC1200 CPU Card
Board User's Manual 8 Revision 2.0, 2013-12-18
2 Hardware Description
The following sections give a detailed description of the hardware and how it can be used.
Figure 2 XMC1200 CPU Card
2.1 Power Supply
XMC1200 CPU Card is powered from the micro USB connector (5V); however, there is a current limit that can
be drawn from the host PC through USB. If the CPU_12A_V1 board is used to drive other application card (e.g.
Colour LED Card or White LED Card) and the total current required exceeds 500mA, then the board needs to
be powered by external power supply connected to VDD and GND connection on board.
The XMC1200 device can operate by power supply of 1.8V till 5.5Vdc. On this board, 5Vdc is used to power the
XMC1200 device. However, if user wants to power the XMC1200 device with 3.3Vdc, then, set Jumper at
JP201 to 3.3V side.
Figure 3 Power Supply circuit