IMX8ULPCEC datasheet(21/105 Pages) NXP

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2.1.2.1.1 True Random Number Generator (TRNG)

The TRNG module is used to generate high quality, cryptographically secure, random data. The TRNG module is capable of

generating its own entropy using an integrated ring oscillator. In addition, the module’s Pseudo-Random Number Generator

(PRNG) provides accelerated processing of pseudo-random data.

2.1.2.1.2 Real-Time Clock (RTC)

The RTC module provides 64-bit monotonic counter with roll-over protection, 32-bit seconds counter with roll-over protection and

32-bit alarm. This timer module is extremely low power that allows it to operate on a backup power supply when the main power

supply is cut off. The RTC remains functional in all low power modes and can generate an interrupt to exit any low power mode.

2.1.2.1.3 Battery-Backed secure module (BBSM)

The Battery-Backed Security Module (BBSM) serves as nonvolatile security logic and storage for Edgelock secure enclave. See

S400 Reference Manual for BBSM chapter.

The following table shows the osc32 specs of this module.

Symbol

Parameter

Min

Typ

Max

Unit

fosc_lo

Oscillator crystal

32.768

kHz

Vec_extal32

Externally

provided input

clock amplitude

0.7

VDD_VBAT18_CA

2.1.2.2 Timers—application domain

The i.MX 8ULP Application Domain implements the following timers:

• Low Power Periodic Interrupt Timer (LPIT)

• Timer/PWM Module (LPTPM)

• External Watchdog Monitor(EWM)

• Time stamp timer module (TSTMR)

• Watchdog Timer (WDOG)

• Multirate Timer (MRT)

See i.MX 8ULP modules list.

2.1.2.3 Connectivity and communications—applications domain

The i.MX 8ULP Application Domain implements the following connectivity and communications peripherals:

• Secure Digital (SD) Interface via the uSDHC

• Low Power Universal Asynchronous Receiver/Transmitter (LPUART)

• Low Power Inter-Integrated Circuit (LPI2C)

• Low Power Serial Peripheral Interface (LPSPI)

• Universal System Bus On-The-Go (USB-OTG)

• Improved Inter-Integrated Circuit Interface (I3C)

• Flexible Serial Peripheral Interface (FlexSPI)

• 10/100 Mpbs Ethernet Controller (ENET)

NXP Semiconductors

Specifications

i.MX 8ULP Applications Processor—Commercial Products, Rev. 1, 09/2023

Data Sheet: Technical Data

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