PCIMX536AVV8B datasheet(17/180 Pages) FREESCALE

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Electrical Characteristics

i.MX53xA Automotive and Infotainment Applications Processors, Rev. 1

Freescale Semiconductor

3.1

Special Signal Considerations

Special signal consideration information is contained in Chapter 1 of i.MX53 System Development User's

Guide.

The package contact assignments can be found in Section 6, “Package Information and Contact

Assignments.” Signal descriptions are defined in i.MX53xA Reference Manual.

Electrical Characteristics

This section provides the device and module-level electrical characteristics for the i.MX53xA processor.

NOTE

This electrical specification is preliminary. These specifications are not

fully tested or guaranteed at this early stage of the product life cycle.

Finalized specifications will be published after thorough characterization

and device qualifications have been completed.

4.1

Chip-Level Conditions

This section provides the device-level electrical characteristics for the IC. See Table 3 for a quick reference

to the individual tables and sections.

WDOG-2

(TZ)

Watch Dog

(TrustZone)

Timer

Peripherals

The TrustZone watchdog (TZ WDOG) timer module protects against

TrustZone starvation by providing a method of escaping normal mode and

forcing a switch to the TZ mode. TZ starvation is a situation where the

normal OS prevents switching to the TZ mode. This situation should be

avoided, as it can compromise the system’s security. Once the TZ WDOG

module is activated, it must be serviced by TZ software on a periodic basis.

If servicing does not take place, the timer times out. Upon a time-out, the

TZ WDOG asserts a TZ mapped interrupt that forces switching to the TZ

mode. If it is still not served, the TZ WDOG asserts a security violation

signal to the CSU. The TZ WDOG module cannot be programmed or

deactivated by a normal mode SW.

XTALOSC

24 MHz Crystal

Oscillator

Clocking

Provides a crystal oscillator amplifier that supports a 24-MHz external

crystal

XTALOSC_

32K

32.768 KHz

Crystal Oscillator

I/F

Clocking

Provides a crystal oscillator amplifier that supports a 32.768-kHz external

crystal.

1 Video partially performed in hardware accelerator (70%) and partially in software.

2 VPU can generate higher bit rate than the maximum specified by the corresponding standard.

Table 2. i.MX53xA Digital and Analog Blocks (continued)

Block

Mnemonic

Block Name

Subsystem

Brief Description

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