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MCIMX53XD

i.MX53xD Applications Processors for Consumer Products

Freescale Semiconductor 

Modules List

Table 2. i.MX53xD Digital and Analog Blocks (continued)

Block

Mnemonic

Block Name

Subsystem

Brief Description

DEBUG

EXTMC

EPIT-1

EPIT-2

ESAI

Debug System System

Control

External Memory Connectivity

Controller

Peripherals

Enhanced

Timer

Periodic Interrupt Peripherals

Timer

Enhanced Serial Connectivity

Audio Interface Peripherals

The debug system provides real-time trace debug capability of both

instructions and data. It supports a trace protocol that is an integral part of

the ARM Real Time Debug solution (RealView).

Real-time tracing is controlled by specifying a set of triggering and filtering

resources, which include address and data comparators, three

cross-system triggers (CTI), counters, and sequencers.

debug access port (DAP) —The DAP provides real-time access for the

debugger without halting the core to system memory, peripheral register,

debug configuration registers and JTAG scan chains.

The EXTMC is an external and internal memory interface. It performs

arbitration between multi-AXI masters to multi-memory controllers, divided

into four major channels, fast memories (DDR2/DDR3/LPDDR2) channel,

slow memories (NOR-FLASH / PSRAM / NAND-FLASH etc.) channel,

internal memory (RAM, ROM) channel and graphical memory (GMEM)

channel.

In order to increase the bandwidth performance, the EXTMC separates the

buffering and the arbitration between different channels so parallel

accesses can occur. By separating the channels, slow accesses do not

interfere with fast accesses.

EXTMC Features:

• 64-bit and 32-bit AXI ports

• Enhanced arbitration scheme for fast channel, including dynamic master

priority, and taking into account which pages are open or closed and

what type (read or write) was the last access

• Flexible bank interleaving

• Support 16/32-bit DDR2-800 or DDR3-800 or LPDDR2.

• Support up to 2 GByte DDR memories.

• Support NFC, EIM signal muxing scheme.

• Support 8/16/32-bit Nor-Flash/PSRAM memories (sync and async

operating modes), at slow frequency. (8-bit is not supported on

D[23]-D[16]).

• Support 4/8/14/16-bit ECC, page sizes of 512-B, 2-KB and 4-KB

Nand-Flash (including MLC)

• Multiple chip selects (up to 4).

• Enhanced DDR memory controller, supporting access latency hiding

• Support watermark for security (internal and external memories)

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 for division of input clock frequency to get the required time

setting for the interrupts to occur, and counter values can be programmed

on the fly.

The enhanced serial audio interface (ESAI) provides a full-duplex serial port

for serial communication with a variety of serial devices, including

industry-standard codecs, SPDIF transceivers, and other processors.

The ESAI consists of independent transmitter and receiver sections, each

section with its own clock generator.

The ESAI has 12 pins for data and clocking connection to external devices.

i.MX53xD Applications Processors for Consumer Products, Rev. 2

Freescale Semiconductor

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