Table 19. I3C slave devices
Part identifier
Manufacturing part number
Description
U34
ICM-42688-P
6-axis motion tracking device with integrated 3-axis gyroscope
and 3-axis accelerometer
J9
One of the four connectors of the Motor 1 c unused
MCU pin socket
2.10 Octal flash memory
The target MCU has a flexible SPI (FlexSPI) host controller, which supports Single/Dual/Quad/Octal mode data transfer (1/2/4/8
bidirectional data lines). The LPC55S36-EVK board supports communication with the FlexSPI host controller through an octal
flash memory. The board also supports populating a flash connector, which can be used to connect an external flash memory to
be used as an alternative to the onboard octal flash memory.
The routing of signals between the target MCU and octal flash memory (or external flash connector) is controlled through various
configuration resistors. The configuration resistors of the octal flash memory are populated, allowing it to communicate to the
target MCU. The external flash connector and its configuration resistors are not populated on the board.
The octal flash memory and the supported external flash connector are described in the table below.
Table 20. Octal flash memory and external flash connector
Part identifier
Manufacturing part number
Description
U29
MX25UM51345GXDI00
24-pin ball grid array (BGA), 512 Mbit octal serial NOR flash
memory.
The footprint also supports the following part numbers:
• S26KS256SDPBHV02
• S27KS0641DPBHI023
• APS6408L-OBM-BA (same pinout as S27KS0641DPBHI023)
J45
QSE-014-01-F-D-DP-A
2x14 pin header for connecting an external flash memory
The default configuration for the LPC55S36-EVK board uses a 3.3 V supply rail for the target MCU. However, the octal flash
memory connected on the board is not a 3.3 V device. Therefore, by default, the octal flash memory is disconnected from the target
MCU signals to protect it from any damage.
To use the flash memory, change the settings of the jumpers listed in the table below from default settings to octal flash settings.
This selects the 1.9 V supply rail for the target MCU and the flash memory, and connects the FlexSPI signals to the flash memory.
If you need to change the supply rail back to 3.3 V, then ensure to change the octal flash jumpers back to the default settings to
avoid damaging the flash.
Table 21. Octal flash specific jumpers
Jumper
Octal flash signal at jumper
Default jumper setting
Jumper setting for octal flash
signal
JP1
VCC_3V3_1V9
1-2 shorted (VCC_3V3)
2-3 shorted (VCC_1V9)
JP56
VCC_FLASH
2-3 shorted (VCC_1V9)
2-3 shorted (VCC_1V9)
JP63
RST_FLASH
Open
Shorted
JP41
FLEXSPI0_D3/P0_2
2-3 shorted
1-2 shorted
Table continues on the next page...
NXP Semiconductors
LPC55S36-EVK Functional Description
LPC55S36-EVK Board User Manual, Rev. 1, 24 January 2022
User Manual
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