LPC540xx
NXP Semiconductors
32-bit ARM Cortex-M4 microcontroller
Table 4.
Symbol
Pin description …continued
Description
[2]
PIO4_1
-
G14 132
-
PU; Z I/O PIO4_1 — General-purpose digital input/output pin.
R — Reserved.
I/O FC6_SCK — Flexcomm 6: USART, SPI, or I2S clock.
R — Reserved.
R — Reserved.
I
SCT0_GPI2 — Pin input 2 to SCTimer/PWM.
O
EMC_CSN[2] — External memory interface static chip
select 2 (active low).
[2]
PIO4_2
-
F14 138
-
PU; Z I/O PIO4_2 — General-purpose digital input/output pin.
R — Reserved.
I/O FC6_RXD_SDA_MOSI_DATA — Flexcomm 6: USART
receiver, I2C data I/O, SPI master-out/slave-in data, I2S
data I/O.
R — Reserved.
R — Reserved.
I
SCT0_GPI3 — Pin input 3 to SCTimer/PWM.
O
EMC_CSN[3] — External memory interface static chip
select 3 (active low).
[2]
PIO4_3
-
F13 140
-
PU; Z I/O PIO4_3 — General-purpose digital input/output pin.
R — Reserved.
I/O FC6_TXD_SCL_MISO_WS — Flexcomm 6: USART
transmitter, I2C clock, SPI master-in/slave-out data I/O, I2S
word-select/frame.
I
CT0_CAP3 — Capture 3 input to Timer 0.
R — Reserved.
I
SCT0_GPI4 — Pin input 4 to SCTimer/PWM.
O
EMC_DYCSN[2] — External Memory interface SDRAM
chip select 2 (active low).
[2]
PIO4_4
-
D9 147
-
PU; Z I/O PIO4_4 — General-purpose digital input/output pin.
R — Reserved.
I/O FC4_SSEL3 — Flexcomm 4: SPI slave select 3.
I/O FC0_RTS_SCL_SSEL1 — Flexcomm 0: USART
request-to-send, I2C clock, SPI slave select 1.
R — Reserved.
I
SCT0_GPI5 — Pin input 5 to SCTimer/PWM.
O
EMC_DYCSN[3] — External Memory interface SDRAM
chip select 3 (active low).
LPC540xx
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 1.8 — 22 June 2018
43 of 168
NXP [ NXP ]
