Installation guide

Table Of Contents
138
Setting the Jumpers
The jumpers on J5 of the credit card board are used to control the
source of the state clock and to turn the glitch on or off. Before you
start each chapter, you should check the jumpers to make sure they are
properly set. The "To Set the Jumpers" exercise, on the next page,
gives you the information you need to change the jumpers. Table 10-1
shows you the jumper settings for the chapters.
Table 10-1 Jumper Settings
GLITCH
CLK1
Chapter 8 ON OSC
All Other
Chapters
(Default)
OFF OSC