The table below explains the LPC55S36-EVK CAN connections.
Table 18. LPC55S36-EVK CAN connections
CAN
controller
Voltage translators
CAN transceiver
Connector
MCAN
Two voltage translators U25 and
U26 (74LVC1T45GW,125). U25
and U26 shift voltage levels of
signals between the target MCU
and HS CAN transceiver from
3.3/1.9 V to 5 V and vice versa.
High-speed CAN transceiver U9 (NXP TJA1044GT),
which is designed for high-speed CAN applications
in the automotive industry, providing the differential
transmit and receive capabilities to a CAN protocol
controller. It converts and sends analog data from
CAN bus lines to the target MCU as digital data, and
converts and sends digital data from the target MCU
to the CAN bus lines as analog data.
DB9 male
connector J19. It
allows external
CAN connection
with the CAN bus.
Jumpers JP23 and JP24 are used to enable/disable high-level CAN bus line (CANH) and low-level CAN bus line
(CANL), respectively.
Jumper JP48 is used to select the target MCU input pin for the MCAN controller. Jumper JP49 is used to select the target MCU
output pin for the MCAN controller.
2.9 I3C interface
The MIPI Alliance improved inter-integrated circuit (MIPI I3C
®
) brings major improvements in use and power over I2C, and
provides an alternative to SPI for mid-speed applications. The target MCU has an I3C module, which is used as an I3C master
for devices (I3C slaves) connected to I3C bus on the LPC55S36-EVK board.
The I3C and SWD signals are shared on the LPC55S36-EVK board. While using I3C, it is recommended to short jumper JP27 to
isolate MCU-Link from driving the shared signals.
The figure below shows the I3C diagram of the LPC55S36-EVK board.
LPC5536
I3C
6-axis motion
tracking device
Motor 1 + unused
MCU pin socket
connector J9
I3C master
I3C slave
I3C slave
Figure 11. I3C diagram
The table below describes the I3C slave devices on 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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