LPC540xx
NXP Semiconductors
32-bit ARM Cortex-M4 microcontroller
Table 4.
Symbol
Pin description …continued
Description
[2]
PIO1_28
A10 E12 151 73
PU; Z I/O PIO1_28 — General-purpose digital input/output pin.
I/O FC7_SCK — Flexcomm 7: USART, SPI, or I2S clock.
I/O SD_D[5] — SD/MMC data 5.
I
CT0_CAP2 — Capture 2 input to Timer 0.
R — Reserved.
R — Reserved.
I/O EMC_D[12] — External Memory interface data [12].
[2][8]
PIO1_29
A8 C11 165 81
PU; Z I/O PIO1_29 — General-purpose digital input/output pin.
I/O FC7_RXD_SDA_MOSI_DATA — Flexcomm 7: USART
receiver, I2C data I/O, SPI master-out/slave-in data, I2S
data I/O.
I/O SD_D[6] — SD/MMC data 6.
I
SCT0_GPI6 — Pin input 6 to SCTimer/PWM.
O
USB1_PORTPWRN — USB1 VBUS drive indicator
(Indicates VBUS must be driven).
O
USB1_FRAME — USB1 frame toggle signal.
I/O EMC_D[13] — External Memory interface data [13].
[2]
PIO1_30
C6 A8 182 86
PU; Z I/O PIO1_30 — General-purpose digital input/output pin.
I/O FC7_TXD_SCL_MISO_WS — Flexcomm 7: USART
transmitter, I2C clock, SPI master-in/slave-out data I/O, I2S
word-select/frame.
I/O SD_D[7] — SD/MMC data 7.
I
I
SCT0_GPI7 — Pin input 7 to SCTimer/PWM.
USB1_OVERCURRENTN — USB1 bus overcurrent
indicator (active low).
O
USB1_LEDN — USB1-configured LED indicator (active
low).
I/O EMC_D[14] — External Memory interface data [14].
[2]
PIO1_31
A3 C5 195 92
PU; Z I/O PIO1_31 — General-purpose digital input/output pin.
I/O MCLK — MCLK input or output for I2S and/or digital
microphone.
R — Reserved.
O
O
CT0_MAT2 — Match output 2 from Timer 0.
SCT0_OUT6 — SCTimer/PWM output 6.
I/O FC8_CTS_SDA_SSEL0 — Flexcomm 8: USART
clear-to-send, I2C data I/O, SPI Slave Select 0.
I/O EMC_D[15] — External Memory interface data [15].
LPC540xx
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 1.8 — 22 June 2018
30 of 168
NXP [ NXP ]
