“Not mounted” – Meaning on a schematic

flashlpcxpressoschematics

I was looking at the schematic of the LPCXPRESSO LPC1769 board from NXP and I couldn't figure out what they meant by "not mounted" which appears on the left corner of the following picture.
not_mounted

Here's a link to the full pdf document (page 3):
http://www.lpcware.com/system/files/LPCXpressoLPC1769revB.pdf

Best Answer

Neither the bypass capacitor C34 nor the SPI flash chip U3 has been populated on the board (since they're both inside the dashed box).

The footprints for both are there, and you could add them yourself (look for the designators C34 and U3). Be sure to add the bypass capacitor C34, if it's not already there, should you decide to add the flash chip.