PPC-E4+ User Manual.doc
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Rev 1.4 © 2015 EMAC, Inc.
5
Appendix B:
Jumper Settings
JB1
Boot Source Selection
Jumper
Position
Setting
Pins 2 & 3
A
Line pulled LOW
Pins 1 & 2* B
Line pulled HIGH
* Default setting
JB2
Boot Option Selection
Jumper
Position
Setting
Pins 2 & 3* A
Line pulled LOW
Pins 1 & 2
B
Line pulled HIGH
* Default Setting
JB3
Flash Write Protect Selection
Jumper
Position
Setting
Pins 1 & 2
A
Flash Write Disable
Pins 2 & 3* B
Flash Write Enable
* Default Setting
