NXP Semiconductors arm LPCXpresso55S36, Руководство пользователя

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NXP Semiconductors
LPCXpresso55S36UM
LPCXpresso55S36 Development Board User Manual
Jumper Octal flash signal at jumper Default jumper setting Jumper setting for octal flash
signal
JP68 FLEXSPI0_SCLK/P0_19 Open Shorted
JP69 FLEXSPI0_D1/P0_4 Open Shorted
Table 20. Octal flash specific jumpers
...continued
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
LPCXpresso55S36 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.
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
Table 21. Onboard DMIC and external DMIC connector
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 LPCXpresso55S36 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.
Reset
Analog
3.3 V power
GND
mikro
BUS
5 V power
+5 V
Reference GND ground
Reference ground
SDA
SCL
TX
RX
INT
PWM
I2C data
I2C clock
UART transmit
UART receive
Hardware interrupt
PWM output
SPI master output slave input
SPI master input slave output
SPI clock
SPI chip select
AN
RST
CS
SCK
MISO
MOSI
+3V3
J8
J7
Figure 12. mikroBUS socket connector pinouts
The LPCXpresso55S36 mikroBUS socket supports different types of add-on boards,
called
click boards
, which are plug and play solutions to add new functionality to the
LPCXpresso55S36UM All information provided in this document is subject to legal disclaimers. © NXP B.V. 2022. All rights reserved.
User manual Rev. 2 — 5 September 2022
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