Delta Tau 4Ax-603625-xUxx - Manual (Page 18)

UMAC-CPCI Turbo CPU Board Hardware Reference Manual
14 Jumper Descriptions
W1: Flash IC Power Supply Select Jumper
E Point &
Physical Layout
Location Description Default
B-1 (Note: This jumper is set at the factory and possibly hard soldered.
Users should not change this jumper.)
Jump pin 1 to 2 to select 3.3V supply for flash memory IC in U10.
Jump pin 2 to 3 to select 5V supply for flash memory IC in U10. Setting
dependent on
flash IC used.