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NXP Semiconductors
UM11192
User Manual for LPCXpresso54S018M Development Board
UM11192 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2019. All rights reserved.
User manual Rev. 1.0
— 13th February 2019
25 of 34
Table 7. Expansion Connector signal sharing
Function Connector Shared with
I
2
C J9 pin 14 & 15 Accelerometer, PMod Slave Connector, Audio Codec,
LCD touch panel controller
SPI J9 pins 9, 11,13,15 PMod Slave Connector
GPIO D8 J9 pin 19 Jumper (JP13) selection for USB0 FS host port. Only one
of USB0 Host mode or GPIO function on this port may be
used.
GPIO J9 pin 6 User LED 3
GPIO J9 pin 8 User LED 2
I2S J9 pins 12, 14, 16, 18, 20 Audio codec. To use an I
2
S device connected to these
pins solder jumpers JS6 through JS9 and JS11 through
JS13 may need to be removed.
8.6 Ethernet port
The LPC54S018J4M incorporates an on-board 10/100 Mbps Ethernet MAC. The
LPCXpresso54S018M board includes an on-board LAN8720A-CP PHY and RJ45 jack
with integrated link status LEDs.
The MCUXpresso SDK for LPCXpresso54S018M includes drivers, LwIP stack and
several examples to show how the Ethernet function can be used.
Due to sharing of pin functionality on the 180 pin LPC54S018J4M package, on this board
port pins P1_16 and P1_23 must routed via jumpers JP14 and JP15 respectively to
either be used for Ethernet (MDC and MDIO signals) or to EMC address lines A10 and
A11. Place in location 1-2 (EN) when using Ethernet or position 2-3 (SD) when using
EMC.
8.7 Smart Card support
Smart Card 0 interface connections are routed to J10 pins 13 (P0_20) and 15 (P0_21)
via solder jumpers JS38 and JS37. Since these signals are also used for the EMC
(SDRAM) address lines A2 and A3, these solder jumpers are left open by default. If
these solder jumpers are closed, then care should be taken not to access the SDRAM
and thus cause bus contention.
9. On-board memory
9.1 SDRAM
The board includes a Winbond 128Mb SDRAM connected to the 16-bit external memory
interface available on the LPC54S018J4M BGA180 part. The MCUXpresso SDK
includes drivers that have optimized external memory settings for use of this memory.
Due to sharing of pin functionality on the 180 pin LPC54S018J4M package, on this board
port pins P1_16 and P1_23 must routed via jumpers JP14 and JP15 respectively to
either be used for Ethernet (MDC and MDIO signals) or to EMC address lines A10 and
A11. Place in location 1-2 (EN) when using Ethernet or position 2-3 (SD) when using
EMC.