LPC540xx
NXP Semiconductors
32-bit ARM Cortex-M4 microcontroller
Table 4.
Symbol
Pin description …continued
Description
[2]
PIO2_12
-
M2 45
-
PU; Z I/O PIO2_12 — General-purpose digital input/output pin.
O
O
I
LCD_LE — LCD line end signal.
SD_VOLT[1] — SD/MMC card regulator voltage control [1].
USB0_IDVALUE — Indicates to the transceiver whether
connected as an A-device (USB0_ID LOW) or B-device
(USB0_ID HIGH).
R — Reserved.
I/O FC5_RXD_SDA_MOSI — Flexcomm 5: USART receiver,
I2C data I/O, SPI master-out/slave-in data.
[2]
PIO2_13
-
P7 70
-
PU; Z I/O PIO2_13 — General-purpose digital input/output pin.
O
O
LCD_DCLK — LCD panel clock.
SD_VOLT[2] — SD/MMC card regulator voltage control [2].
R — Reserved.
R — Reserved.
I/O FC5_TXD_SCL_MISO — Flexcomm 5: USART transmitter,
I2C clock, SPI master-in/slave-out data.
[2][8]
PIO2_14
-
L7
77
-
PU; Z I/O PIO2_14 — General-purpose digital input/output pin.
O
LCD_FP — LCD frame pulse (STN). Vertical
synchronization pulse (TFT).
O
O
USB0_FRAME — USB0 frame toggle signal.
USB0_PORTPWRN — USB0 VBUS drive indicator
(Indicates VBUS must be driven).
O
CT0_MAT2 — Match output 2 from Timer 0.
I/O FC5_CTS_SDA_SSEL0 — Flexcomm 5: USART
clear-to-send, I2C data I/O, SPI Slave Select 0.
[2]
PIO2_15
-
M8 79
-
PU; Z I/O PIO2_15 — General-purpose digital input/output pin.
O
O
I
LCD_AC — LCD STN AC bias drive or TFT data enable
output.
USB0_LEDN — USB0-configured LED indicator (active
low).
USB0_OVERCURRENTN — USB0 bus overcurrent
indicator (active low).
O
CT0_MAT3 — Match output 3 from Timer 0.
I/O FC5_RTS_SCL_SSEL1 — Flexcomm 5: USART
request-to-send, I2C clock, SPI slave select 1.
LPC540xx
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 1.8 — 22 June 2018
33 of 168
NXP [ NXP ]
