Table 14. I2C bus device map (continued)
Flexcomm
module
I2C address
Device
Description
FC1
LPC55S69JBD100 (U16)
MCU-Link. A USB-to-I2C bridge is supported
between MCU-Link and the target MCU using an
I2C repeater / a voltage translator (U27). Jumper
JP4 can be used to enable/disable the USB-to-I2C
bridge.
FC3
I2C address is
defined by the
connected board/
module
Motor 2 c Arduino socket
connector J92
Provides I2C connectivity to the board/module
connected to Motor 2 c Arduino socket
FC7
I2C address is
defined by the
connected DMIC
TSW-107-07-F-D (J41)
External digital PDM microphone (DMIC)
connector. It provides I2C connectivity to the
external DMIC connected to J41.
I2C address is
defined by the
connected audio
device
TMM-112-01-G-D (J44)
Audio expansion connector. It provides I2C
connectivity to the external audio device
connected to J44.
0x34/0x35
WM8904 (U13)
Audio codec. It provides I2C connectivity to audio
line in / line out connectors (J5 and J6).
I2C address is
defined by the
connected board/
module
Motor 2 c Arduino socket
connector J132
Provides I2C connectivity to the board/module
connected to Motor 2 c Arduino socket
I2C address is
defined by the
plugged-in click
board
mikroBUS socket connector J8
Provides I2C connectivity to the click board
plugged-in into the mikroBUS socket
2.6 I2S interface
Inter-IC sound (I2S) is a three-wire serial bus with one data, one clock, and one word select (frame trigger) signals. Each of the
Flexcomm modules 0-5 of the target MCU provides one channel pair of I2S. One of these modules can be set as I2S master and
others as I2S slaves. Each of the Flexcomm modules 6-7 of the target MCU provides four channel pairs of I2S. These modules
can only be set as I2S slaves.
In the LPC55S36-EVK board, I2S connections are supported on Flexcomm modules 0, 2, 3, 4, and 6. The figure below shows the
I2S diagram of the LPC55S36-EVK board.
NXP Semiconductors
LPC55S36-EVK Functional Description
LPC55S36-EVK Board User Manual, Rev. 1, 24 January 2022
User Manual
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