Table 21. Octal flash specific jumpers (continued)
Jumper
Octal flash signal at jumper
Default jumper setting
Jumper setting for octal flash
signal
JP42
FLEXSPI0_D0/P0_6
2-3 shorted
1-2 shorted
JP43
FLEXSPI0_DQS/P0_25
2-3 shorted
1-2 shorted
JP44
FLEXSPI0_D2/P0_3
2-3 shorted
1-2 shorted
JP45
FLEXSPI0_SS0_N/P0_21
2-3 shorted
1-2 shorted
JP64
FLEXSPI0_D7/P1_29
2-3 shorted
1-2 shorted
JP65
FLEXSPI0_D6/P1_27
2-3 shorted
1-2 shorted
JP66
FLEXSPI0_D4/P1_16
Open
Shorted
JP67
FLEXSPI0_D5/P1_15
Open
Shorted
JP68
FLEXSPI0_SCLK/P0_19
Open
Shorted
JP69
FLEXSPI0_D1/P0_4
Open
Shorted
2.11 DMIC and external DMIC connector
The target MCU has a digital microphone interface subsystem, which includes a dual-channel (channels 0 and 1) digital PDM
microphone (DMIC) module. The LPC55S36-EVK board supports communication with the DMIC module of the target MCU
through a DMIC device. The board also provides a DMIC connector, which can be used to connect an external DMIC device to
be used as an alternative to the onboard DMIC.
The routing of signals between the target MCU and onboard DMIC (or external DMIC connector) is controlled through various
configuration resistors. The configuration resistors of the onboard DMIC are populated, allowing it to communicate to the target
MCU. The configuration resistors of the external DMIC connector are not populated on the board.
The onboard DMIC and external DMIC connector are described in the table below.
Table 22. Onboard DMIC and external DMIC connector
Part identifier
Manufacturing part number
Description
U30
SPH0641LM4H-1
Onboard DMIC, placed on the bottom side of PCB. The voice
comes from the top side of PCB via a through-hole.
J41
TSW-107-07-F-D
2x7 pin header for connecting an external DMIC
2.12 mikroBUS socket
A mikroBUS socket is a pair of 1x8 position receptacles (connectors) with a proprietary pin configuration and silkscreen markings.
It allows maximum hardware expandability with smallest number of pins.
The LPC55S36-EVK board has a mikroBUS socket with two 1x8 position receptacles, J7 and J8. The figure below shows the
silkscreen markings and pinouts of the mikroBUS socket connectors with explanation.
NXP Semiconductors
LPC55S36-EVK Functional Description
LPC55S36-EVK Board User Manual, Rev. 1, 24 January 2022
User Manual
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