LPC540xx
NXP Semiconductors
32-bit ARM Cortex-M4 microcontroller
Table 8 shows the peripheral configuration in reduced power modes.
Table 8.
Peripheral configuration in reduced power modes
Reduced power mode
Peripheral
Sleep
Deep-sleep
Deep power-down
FRO
BOD
PLL
Software configured Software configured
Software configured Software configured
Software configured Off
Off
Off
Off
Off
Watchdog osc and
WWDT
Software configured Software configured
Micro-tick Timer
DMA
Software configured Software configured
Active
Off
Configurable some for operations.
Off
USART
Software configured Off; but can create a wake-up interrupt in synchronous Off
slave mode or 32 kHz clock mode
SPI
Software configured Off; but can create a wake-up interrupt in slave mode Off
Software configured Off; but can create a wake-up interrupt in slave mode Off
I2C
USB0
USB1
Ethernet
DMIC
Software configured Software configured
Software configured Software configured
Software configured Off
Off
Off
Off
Software configured Software configured
Off
Other digital peripherals Software configured Off
Off
RTC oscillator
Software configured Software configured
Software configured
LPC540xx
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© NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet
Rev. 1.8 — 22 June 2018
66 of 168
NXP [ NXP ]
