SCIMX6QP4AVT2AB datasheet(26/166 Pages) NXP

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i.MX 6DualPlus/6QuadPlus Automotive Applications Processors, Rev. 3, 11/2018

NXP Semiconductors

Electrical Characteristics

— At power up, an internal ring oscillator is used. After crystal oscillator is stable, the clock circuit

switches over to the crystal oscillator automatically.

— Higher accuracy than ring oscillator.

— If no external crystal is present, then the ring oscillator is used.

The decision to choose a clock source should be based on real-time clock use and precision timeout.

4.1.5

Maximum Measured Supply Currents

Power consumption is highly dependent on the application. Estimating the maximum supply currents

required for power supply design is difficult because the use case that requires maximum supply current is

not a realistic use case.

To help illustrate the effect of the application on power consumption, data was collected while running

industry standard benchmarks that are designed to be compute and graphic intensive. The results provided

are intended to be used as guidelines for power supply design.

Description of test conditions:

•

The Power Virus data shown in Table 8 represent a use case designed specifically to show the

maximum current consumption possible for the Arm core complex. All cores are running at the

defined maximum frequency and are limited to L1 cache accesses only to ensure no pipeline stalls.

Although a valid condition, it would have a very limited, if any, practical use case, and be limited

to an extremely low duty cycle unless the intention was to specifically cause the worst case power

consumption.

•

EEMBC CoreMark: Benchmark designed specifically for the purpose of measuring the

performance of a CPU core. More information available at www.eembc.org/coremark. Note that

this benchmark is designed as a core performance benchmark, not a power benchmark. This use

case is provided as an example of power consumption that would be typical in a

computationally-intensive application rather than the Power Virus.

•

3DMark Mobile 2011: Suite of benchmarks designed for the purpose of measuring graphics and

overall system performance. Note that this benchmark is designed as a graphics performance

benchmark, not a power benchmark. This use case is provided as an example of power

consumption that would be typical in a very graphics-intensive application.

•

Devices used for the tests were from the high current end of the expected process variation.

The NXP power management IC, MMPF0100xxxx, which is targeted for the i.MX 6 series processor

family, supports the power consumption shown in Table 8, however a robust thermal design is required for

the increased system power dissipation.

See the i.MX 6Dual/6Quad Power Consumption Measurement Application Note (AN4509) for more

details on typical power consumption under various use case definitions.

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