Instructions

54Hardware

To deactivate the SRAM the jumper JP7 has to be moved to the left side (orientation: serial interface

shows to the left), such that the left pins of JP7 are connected.

2.1.7.2 Jumper Application Board

Jumper

By use of jumpers certain options can be selected. This applies to several ports which are provided

with special functions (see Pin Assignment Table for M128). E. g. the serial interface is realized

through Pins PortE.0 and PortE.1. If the serial interface is not being used then the corresponding

jumpers can be removed and these pins will then be available for other functions. Besides the port

jumpers there are additional jumpers which are described in the following.

Jumperpositionen im Auslieferzustand

Ports A through G

The ports available with the Mega128 Module are inscribed in this graph. Here the yellow side is con-

nected to the module while the light blue side connects to the components of the application board.

If any jumper is pulled then the connection to the application board is suspended. This may lead to

obstructions of USB, RS232, etc. on the board. The gray marking indicates the first Pin (Pin 0) of

the Port.