EVK-NORA-B1 - User guide
UBX-20030319 - R05
Hardware description
Page 15 of 32
C1-Public
2.11
QSPI
A 64 Mbit Quad SPI (MX25R6435F) flash is available on the EVK-NORA-B1. This memory can be used
for execute-in-place (XIP) directly from the flash as well as from general data storage.
Figure 11: Quad SPI flash
2.12
GPIO jumpers
Several solder bridge jumpers on the board are available to configure the GPIO functions. Most solder
jumpers are used to remove on-board components from the GPIO nets in the module and
consequently eliminate interference with external circuitry added on the I/O headers.
All GPIOs are directly connected to the I/O Headers by default, except P0.00 and P0.01 (32 kHz
crystal), P0.02 and P0.03 (NFC antenna), and P0.13 – P0.18 (QSPI). These are disconnected from the
I/O headers as they would otherwise interfere with the default functions. The GPIO jumpers and
associated functions are shown on the bottom of the EVK-NORA-B1 PCB.
Figure 12: Legend for GPIO solder bridge jumpers
