NXP Semiconductors
UM11192
User Manual for LPCXpresso54S018M Development Board
UM11192
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© NXP B.V. 2019. All rights reserved.
User manual
Rev. 1.0
— 13th February 2019
8 of 34
Circuit ref
Description
Section
JP11 &
JP12
USB0 host / Ethernet TXD/RXD selection
Due to sharing of pin functionality on this development board, it is
not possible to support the Ethernet port and USB0 overcurrent
feature simultaneously. For both JP11 and JP12:
Install jumper in position 1-2 to enable Ethernet (Default)
Install jumper in position 2-3 for USB0 (Full Speed) (i.e. enable
USB host capability)
8.2
JP13
USB0 host / Ethernet selection
Due to sharing of pin functionality on this development board, the
P4-7 port pin is used for either the USB0 port or as a general
purpose signal on the expansion connector.
Install jumper in position 1-2 to route P4-7 to the expansion
connector.
Install jumper in position 2-3 for USB0 (Full Speed) (i.e. enable
USB host capability)
8.2, 8.6
JP14
P1_16 Ethernet / EMC selection
Due to sharing of pin functionality on the 180 pin LPC54S018J4M
package, on this board port pin P1_16 must routed via JP14 to
either be used as the Ethernet MDC signal or EMC address line
A10. Place in location 1-2 (EN) when using Ethernet or position 2-3
(SD) when using EMC.
JP15
P1_23 Ethernet / EMC selection
Due to sharing of pin functionality on the 180 pin LPC54S018J4M
package, on this board port pin P1_23 must routed via JP15 to
either be used as the Ethernet MDIO signal or EMC address line
A11. Place in location 1-2 (EN) when using Ethernet or position 2-3
(EN) when using EMC.
Table 2 describes the board LED and button functions, and connectors.
Table 2.
LEDs, buttons and connectors
Circuit Ref
Description
Section
D7
SD card slot power enable
This LED illuminates when power is enabled to the SD card slot
(controlled by LPC54S018J4M port P2-5.)
n/a
D9, D11,
D12
User LEDs
These LEDs are for application use. They are illuminated when the
driving signal from the LPC54S018J4M is low. The LEDs are driven by
ports P2-2 (D9), P3-3 (D11) and P3-14 (D12).
n/a
D10
Link2 boot mode
Link2 LPC43xx BOOT0_LED indicator. Reflects the state of LPC43xx
Link2 MCU P1_1. When the boot process fails, D1 will toggle at a 1 Hz
rate for 60 seconds. After 60 seconds, the LPC43xx is reset.
n/a