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IMX35

i.MX35 Applications Processors for Automotive Products

Freescale Semiconductor 

Table 4. Digital and Analog Modules (continued)

Block

Mnemonic

Block Name

Domain1

Subsystem

Brief Description

I2C(3) I2C module ARM

ARM1136

platform

peripherals

Inter-integrated circuit (I2C) is an industry-standard, bidirectional

serial bus that provides a simple, efficient method of data exchange,

minimizing the interconnection between devices. I2C is suitable for

applications requiring occasional communications over a short

distance among many devices. The interface operates at up to

100 kbps with maximum bus loading and timing. The I2C system is

a true multiple-master bus, with arbitration and collision detection

that prevent data corruption if multiple devices attempt to control the

bus simultaneously. This feature supports complex applications with

multiprocessor control and can be used for rapid testing and

alignment of end products through external connections to an

assembly-line computer.

IIM IC

ARM

identification

module

Security

modules

The IIM provides the primary user-visible mechanism for interfacing

with on-chip fuse elements. Among the uses for the fuses are

unique chip identifiers, mask revision numbers, cryptographic keys,

and various control signals requiring a fixed value.

IOMUX External

ARM

Pins

signals and pin

multiplexing

Each I/O multiplexer provides a flexible, scalable multiplexing

solution with the following features:

• Up to eight output sources multiplexed per pin

• Up to four destinations for each input pin

• Unselected input paths held at constant levels for reduced power

consumption

IPUv1 Image

ARM

processing unit

Multimedia

peripherals

The IPU supports video and graphics processing functions. It also

provides the interface for image sensors and displays. The IPU

performs the following main functions:

• Preprocessing of data from the sensor or from the external

system memory

• Postprocessing of data from the external system memory

• Post-filtering of data from the system memory with support of the

MPEG-4 (both deblocking and deringing) and H.264 post-filtering

algorithms

• Displaying video and graphics on a synchronous (dumb or

memory-less) display

• Displaying video and graphics on an asynchronous (smart)

display

• Transferring data between IPU sub-modules and to/from the

system memory with flexible pixel reformatting

KPP Keypin port ARM

Connectivity Can be used for either keypin matrix scanning or general purpose

peripherals I/O.

MLB

Media local

bus

ARM

Connectivity The MLB is designed to interface to an automotive MOST ring.

peripherals

OSCAUD OSC audio

reference

oscillator

Analog

Clock

The OSCAUDIO oscillator provides a stable frequency reference for

the PLLs. This oscillator is designed to work in conjunction with an

external 24.576-MHz crystal.

i.MX35 Applications Processors for Automotive Products, Rev. 6

Freescale Semiconductor

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