NXP Semiconductors
LPCXpresso55S36UM
LPCXpresso55S36 Development Board User Manual
Slave select
Voltage translator
Slave device / MCU-Link target
Slave select 0
mikroBUS socket connector J7. It allows a SPI
connection between the target MCU and click
board plugged into the mikroBUS socket.
Bidirectional voltage translator U24
(74AVC4TD245BQ). It supports a USB-to-SPI
bridge between MCU-Link and the target MCU,
by shifting voltage levels of signals between the
two devices from 3.3 V to 3.3/1.9 V and vice
versa. The USB-to-SPI bridge can be disabled
(so that the target MCU HS SPI port can be
used for other purposes) by shorting jumper
JP57 (not populated on the board).
MCU-Link target (LPC55S69). The USB-to-SPI
bridge between MCU-Link and the target MCU
can be used for debugging the target MCU
(slave) from MCU-Link (master).
Slave select 1
8 Mbit SPI NOR flash memory (U10) (not
populated on the board). Supported part
number is MX25R8035FM2IL0.
If the SPI NOR flash memory is attached, it
is powered up by shorting jumper JP34 (not
populated on the board). Using this connection
also requires disabling the USB-to-SPI bridge
between MCU-Link and the target MCU by
shorting jumper JP57 (not populated on the
board).
Slave select 3
Motor 2 c Arduino socket connector J92.
It allows a SPI connection between the target
MCU and board/module attached to the socket.
Table 16. HS SPI connections
2.8 CAN interface
The target MCU has a controller area network flexible data (MCAN) controller,
which supports CAN flexible data-rate (FD). The LPCXpresso55S36 board allows
communication with MCAN controller through a high-speed (HS) CAN transceiver, which
drives CAN signals between MCAN controller and a physical two-wire CAN bus that
terminates at a DB9 connector.
The figure below shows the CAN diagram of the LPCXpresso55S36 board.
LPC5536
MCAN
Two voltage
translators
HS CAN
transceiver
DB9
connector
Figure 10. CAN diagram
The table below explains the LPCXpresso55S36 CAN connections.
LPCXpresso55S36UM
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User manual
Rev. 2 — 5 September 2022
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