LPC540xx
NXP Semiconductors
32-bit ARM Cortex-M4 microcontroller
Table 4.
Symbol
Pin description …continued
Description
[2]
[2]
[2]
[2]
PIO1_20
PIO1_21
PIO1_22
PIO1_23
G2 M1 35
K6 N8 74
K8 P11 89
K10 M10 97
17
37
43
46
PU; Z I/O PIO1_20 — General-purpose digital input/output pin.
I/O FC7_RTS_SCL_SSEL1 — Flexcomm 7: USART
request-to-send, I2C clock, SPI slave select 1.
R — Reserved.
I
CT3_CAP2 — Capture 2 input to Timer 3.
R — Reserved.
I/O FC4_TXD_SCL_MISO — Flexcomm 4: USART transmitter,
I2C clock, SPI master-in/slave-out data.
I/O EMC_D[9] — External Memory interface data [9].
PU; Z I/O PIO1_21 — General-purpose digital input/output pin.
I/O FC7_CTS_SDA_SSEL0 — Flexcomm 7: USART
clear-to-send, I2C data I/O, SPI Slave Select 0.
R — Reserved.
O
CT3_MAT2 — Match output 2 from Timer 3.
R — Reserved.
I/O FC4_RXD_SDA_MOSI — Flexcomm 4: USART receiver,
I2C data I/O, SPI master-out/slave-in data.
I/O EMC_D[10] — External Memory interface data [10].
PU; Z I/O PIO1_22 — General-purpose digital input/output pin.
I/O FC8_RTS_SCL_SSEL1 — Flexcomm 8: USART
request-to-send, I2C clock, SPI slave select 1.
I/O SD_CMD — SD/MMC card command I/O.
O
I
CT2_MAT3 — Match output 3 from Timer 2.
SCT0_GPI5 — Pin input 5 to SCTimer/PWM.
I/O FC4_SSEL3 — Flexcomm 4: SPI slave select 3.
O
EMC_CKE[1] — External memory interface SDRAM clock
enable 1.
PU; Z I/O PIO1_23 — General-purpose digital input/output pin.
I/O FC2_SCK — Flexcomm 2: USART or SPI clock.
O
SCT0_OUT0 — SCTimer/PWM output 0.
R — Reserved.
I/O ENET_MDIO — Ethernet management data I/O.
I/O FC3_SSEL2 — Flexcomm 3: SPI slave select 2.
O
EMC_A[11] — External memory interface address 11.
LPC540xx
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 1.8 — 22 June 2018
28 of 168
NXP [ NXP ]
