NXP Semiconductors LPCXpresso54608 - Ethernet port; Smart Card (revision E and onwards only); On-board memory

NXP Semiconductors
UM11035
LPCXpresso boards for LPC546xx/LPC540xx/LPC54S0xx families of
MCUs
UM11035
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2017-2019. All rights reserved.
User manual
Rev. 2.1 — 7th January 2019
26 of 36
Below shows the sharing of signals between the expansion connectors and other
connectors or circuit functions. Refer to the board schematics for more details.
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.
7.6 Ethernet port
The LPC546x8/540xx/54S0xx incorporates an on-board 10/100 Mbps Ethernet MAC.
The LPCXpresso546x8/540xx/54S0xx board includes an on-board LAN8720A-CP PHY
and RJ45 jack with integrated link status LEDs.
The MCUXpresso SDK for LPCXpresso546x8/540xx/54S0xx includes drivers, LwIP
stack and several examples to show how the Ethernet function can be used.
7.7 Smart Card (revision E and onwards only)
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.
8. On-board memory
8.1 SDRAM
The board includes a Winbond 128Mb SDRAM (Micron SDRAM used on revision C and
earlier, and some rev D builds), connected to the 16-bit external memory interface
available on the LPC546x8/540xx/54S0xx BGA180 part. The MCUXpresso SDK includes
drivers that have optimized external memory settings for use of this memory.
8.2 Quad SPI flash
The board includes a 128Mb Winbond W25Q128JVFIM Quad-SPI flash (Micron
MX25L12835FM2I-10G used on revision C and earlier, and some rev D builds). The
MCUXpresso SDK includes drivers for use of this memory as a data storage/retrieval
device. Note that drivers for this device may be required for the development tool chain
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