2.2 Clocks
The table below describes the clocks available on the LPC55S36-EVK board.
Table 11. LPC55S36-EVK clocks
Clock generator
Clock
Frequency
Destination
Y2: Crystal (CX3225SA16000D0PTW)
XTAL32M_[P,N]
16 MHz
Target MCU (LPC5536)
Y3: Crystal (FC-135 32.7680KA-AG3)
XTAL32K_[P,N]
32.768 kHz
Target MCU
Y1: Crystal (CX3225GA16000D0PTVCC)
MCU_LINK_[P,N]_16MHz
16 MHz
MCU-Link (LPC55S69)
2.3 USB interface
The LPC55S36-EVK board has three USB connectors, each can accept 5 V external power. Two out of the three USB connectors
can work as both USB ports and power connectors. The third one only works as a power connector.
The table below explains the LPC55S36-EVK USB connectors.
Table 12. LPC55S36-EVK USB connectors
Part identifier
Connector type
Device
Description
J3
USB 2.0 micro-AB
receptacle
ZX62D-AB-5P8(30)
(Hirose Electric)
Connects to full-speed USB host and device
controller (USB0) of the target MCU (LPC5536). The
USB0 port can work in either Host or Device mode.
In USB0 Host mode, the J2 connector must be used
as the power supply source (5 V) for the board. In
USB0 Device mode, the J3 connector can serve as
a power supply source (5 V) for the board.
J2
USB 2.0 micro-B
receptacle
ZX62D-B-5PA8(30)
(Hirose Electric)
Supplies 5 V power to the target MCU and
peripheral circuitry, excluding MCU-Link debug
probe. When the target MCU USB0 port is in Host
mode, the J2 connector provides USB host power
for the J3 connector.
J1
USB 2.0 micro-B
receptacle
ZX62D-B-5PA8(30)
(Hirose Electric)
Used to create MCU-Link high-speed USB
connection to the host computer. J1 is also used to
provide a 5 V supply to the board.
2.4 USART interface
The target MCU has a USART module, which can be accessed using its Flexcomm modules 0-7. In the LPC55S36-EVK board,
the USART module is accessed using Flexcomm modules 0 and 2 of the target MCU.
The figure below shows the USART connection diagram of the LPC55S36-EVK board.
NXP Semiconductors
LPC55S36-EVK Functional Description
LPC55S36-EVK Board User Manual, Rev. 1, 24 January 2022
User Manual
28 / 49