Datasheet
LPC55S6x All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2019. All rights reserved.
Product data sheet Rev. 1.0 — 26 February 2019 12 of 123
NXP Semiconductors
LPC55S6x
32-bit ARM Cortex-M33 microcontroller
PIO0_4/
TMS
E7 86
[2]
Z I/O 0 PIO0_4 — General-purpose digital input/output pin. In boundary
scan mode: TMS (Test Mode Select).
Remark: In ISP mode, this pin is set to the Flexcomm 3 SPI SSEL0
function.
1 R — Reserved.
I/O 2 FC4_SCK — Flexcomm 4: USART, SPI, or I2S clock.
I3CTIMER_INP12 — Capture input to CTIMER input multiplexers.
I4SCT0_GPI4 — Pin input 4 to SCTimer/PWM.
5 R — Reserved.
6 R — Reserved.
7 R — Reserved.
I/O 8 FC3_CTS_SDA_SSEL0 — Flexcomm 3: USART clear-to-send,
I2C data I/O, SPI Slave Select 0.
9 R — Reserved.
I/O 10 SEC_PIO0_4 — Secure GPIO pin.
PIO0_5/
TDI
A7 88
[2]
PU I/O 0 PIO0_5 — General-purpose digital input/output pin. In boundary
scan mode: TDI (Test Data In).
Remark: The state of this pin at Reset
determines the boot source
for the part or if ISP handler is invoked. See the Boot Process
chapter in UM11126 for more details.
1 R — Reserved.
I/O 2 FC4_RXD_SDA_MOSI_DATA — Flexcomm 4: USART receiver,
I2C data I/O, SPI master-out/slave-in data, I2S data I/O.
O3CTIMER3_MAT0 — 32-bit CTimer3 match output 0.
I4SCT0_GPI5 — Pin input 5 to SCTimer/PWM.
5 R — Reserved.
6 R — Reserved.
7 R — Reserved.
I/O 8 FC3_RTS_SCL_SSEL1 — Flexcomm 3: USART request-to-send,
I2C clock, SPI slave select 1.
I/O 9 MCLK — MCLK input or output for I2S.
I/O 10 SEC_PIO0_5 — Secure GPIO pin.
Table 3. Pin description …continued
Symbol
98 pin VFBGA
100 pin HLQFP
Reset state
[1]
Type
Function #
Description