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– L1 Power management substates support

– D1 support

– L1 PM substate power shutoff support

• Legacy, MSI, and MSI-X interrupt support

• 32 outbound address translation regions

• Precision time measurement (PTM)

For more information, see Peripheral Component Interconnect Express (PCIe) Subsystem section in Peripherals

chapter in the device TRM.

8.4.2.20 SerDes

Integrated in the MAIN domain is one instance of high-speed differential interface implemented with Serializer/

Deserializer (SERDES) Multi-protocol Multi-link modules with the following main blocks:

• Quad lane PHY with common module for peripheral and Tx clocking handling

• Physical coding sub-block for data translation from/to the parallel interface, as well as data encoding/

decoding and ymbol alignment

• MUX module for device interfaces multiplexing into a single SERDES lane (Tx and Rx)

• A wrapper for sending control and reporting status signals from the SerDes and muxes

For more information, see Serializer/Deserializer (SerDes) section in Peripherals chapter in the device TRM.

8.4.2.21 RTI

This section describes the Real Time Interrupt (RTI) modules with Windowed Watchdog Timer (WWDT)

functionality for the device.

The Real Time Interrupt module provides timer functionality for operating systems and for benchmarking code.

The module incorporates several counters, which define the timebases needed for scheduling in the operating

system.

This module is specifically designed to fulfill the requirements for OSEK (“Offene Systeme und deren

Schnittstellen für die Elektronik im Kraftfahrzeug”; “Open Systems and the Corresponding Interfaces for

Automotive Electronics”) as well as OSEK/Time compliant operating systems.

The timers also provide the ability to benchmark certain areas of code by reading the counter contents at the

beginning and the end of the desired code range and calculating the difference between the values.

For more information, see Real Time Interrupt (RTI) Module section in Peripherals chapter in the device TRM.

8.4.2.22 DMTIMER

The DMTIMER module supports the following main features:

• Interrupts generated on overflow, compare and capture

• Free running 32-bit upward counter

• Supported modes:

– Compare and capture modes

– Auto-reload mode

– Start-stop mode

• Programmable divider clock source (2n with n=[0:8])

• Dedicated input trigger for capture mode, and dedicated output trigger/PWM (pulse width modulation) signal

• On the fly read/write register (while counting)

• Generate 1-ms tick with 32768-Hz functional clock

For more information, see Timers section in Peripherals chapter in the device TRM.

8.4.2.23 UART

The UART module supports the following main features:

• 16C750 compatibility

AM6442, AM6441, AM6421

AM6412, AM6411

SPRSP56 – JANUARY 2021

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