UM11158 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 1.6 — 17 March 2022  5 of 24
 
NXP Semiconductors
UM11158
LPCXpresso55S69/55S28 Development Boards
2.  Board layout and Settings
Figure 2 shows the layout of the board (top side), indicating location of the connectors and 
buttons, while Figure 3 shows locations of jumpers and headers. Table 1 provides a 
description of connectors, jumpers, LEDs and buttons.
 
Fig 2. Board connectors and buttons