IMX35 datasheet(7/148 Pages) FREESCALE

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i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 6

Freescale Semiconductor

ATA

ATA module

SDMA

Connectivity

peripherals

The ATA block is an AT attachment host interface. Its main use is to

interface with IDE hard disk drives and ATAPI optical disk drives. It

interfaces with the ATA device over a number of ATA signals.

AUDMUX

Digital audio

mux

ARM

Multimedia

peripherals

The AUDMUX is a programmable interconnect for voice, audio, and

synchronous data routing between host serial interfaces (SSIs) and

peripheral serial interfaces (audio codecs). The AUDMUX has two

sets of interfaces: internal ports to on-chip peripherals and external

ports to off-chip audio devices. Data is routed by configuring the

appropriate internal and external ports.

CAN(2)

CAN module

ARM

Connectivity

peripherals

The CAN protocol is primarily designed to be used as a vehicle

serial data bus running at 1 Mbps.

CCM

Clock control

module

ARM

Clocks

This block generates all clocks for the peripherals in the SDMA

platform. The CCM also manages ARM1136 platform low-power

modes (WAIT, STOP), disabling peripheral clocks appropriately for

power conservation, and provides alternate clock sources for the

ARM1136 and SDMA platforms.

CSPI(2)

Configurable

serial

peripheral

interface

SDMA,

ARM

Connectivity

peripherals

This module is a serial interface equipped with data FIFOs; each

master/slave-configurable SPI module is capable of interfacing to

both serial port interface master and slave devices. The CSPI ready

(SPI_RDY) and slave select (SS) control signals enable fast data

communication with fewer software interrupts.

ECT

Embedded

cross trigger

SDMA,

ARM

Debug

ECT (embedded cross trigger) is an IP for real-time debug

purposes. It is a programmable matrix allowing several subsystems

to interact with each other. ECT receives signals required for

debugging purposes (from cores, peripherals, buses, external

inputs, and so on) and propagates them (propagation programmed

through software) to the different debug resources available within

the SoC.

EMI

External

memory

interface

SDMA

External

memory

interface

The EMI module provides access to external memory for the ARM

and other masters. It is composed of the following main

submodules:

M3IF—provides arbitration between multiple masters requesting

access to the external memory.

SDRAM CTRL—interfaces to mDDR, DDR2 (4-bank architecture

type), and SDR interfaces.

NANDFC—provides an interface to NAND Flash memories.

WEIM—interfaces to NOR Flash and PSRAM.

EPIT(2)

Enhanced

periodic

interrupt timer

ARM

Timer

peripherals

Each EPIT is a 32-bit “set-and-forget” timer that starts counting after

the EPIT is enabled by software. It is capable of providing precise

interrupts at regular intervals with minimal processor intervention. It

has a 12-bit prescaler to adjust the input clock frequency to the

required time setting for the interrupts, and the counter value can be

programmed on the fly.

Table 3. Digital and Analog Modules (continued)

Block

Mnemonic

Block Name

Domain1

Subsystem

Brief Description

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