IMX51A 데이터 시트보기 (PDF) - Freescale Semiconductor

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IMX51A

i.MX51A Automotive and Infotainment Applications Processors

Freescale Semiconductor 

Features

Table 2. i.MX51A Digital and Analog Modules (continued)

Block

Mnemonic

Block Name Subsystem

Brief Description

IIM

IOMUXC

IPU

IC

Identification

Module

Security

IOMUX

Control

Image

Processing

Unit

System

Control

Peripherals

Multimedia

Peripherals

The IC Identification Module (IIM) provides an interface for reading,

programming, and/or overriding identification and control information stored in

on-chip fuse elements. The module supports electrically programmable poly

fuses (e-Fuses). The IIM also provides a set of volatile software-accessible

signals that can be used for software control of hardware elements not requiring

non-volatility. 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, JTAG secure mode,

boot characteristics, and various control signals requiring permanent

non-volatility. The IIM also provides up to 28 volatile control signals. The IIM

consists of a master controller, a software fuse value shadow cache, and a set

of registers to hold the values of signals visible outside the module.

This module enables flexible I/O multiplexing. Each I/O pad has default as well

as several alternate functions. The alternate functions are software configurable.

IPU enables connectivity to displays and image sensors, relevant processing

and synchronization. It supports two display ports and two camera ports,

through the following interfaces.

• Legacy Interfaces

• Analog TV interfaces (through a TV encoder bridge)

KPP

Keypad Port Connectivity

Peripherals

P-ATA (Muxed Parallel ATA

with

eSDHC-4

Connectivity

Peripherals

PWM-1

PWM-2

Pulse Width Connectivity

Modulation Peripherals

RAM

Internal RAM Internal

128 Kbytes

Memory

ROM

Boot ROM

36 Kbytes

Internal

Memory

The processing includes:

• Support for camera control

• Image enhancement: color adjustment and gamut mapping, gamma

correction and contrast enhancement, sharpening and noise reduction

• Video/graphics combining

• Support for display backlight reduction

• Image conversion—resizing, rotation, inversion and color space conversion

• Synchronization and control capabilities, allowing autonomous operation.

• Hardware de-interlacing support

The KPP supports an 8 × 8 external keypad matrix. The KPP features are as

follows:

• Open drain design

• Glitch suppression circuit design

• Multiple keys detection

• Standby key press detection

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

with hard disc drives and optical disc drives. It interfaces with the ATA-5

(UDMA-4) compliant device over a number of ATA signals. It is possible to

connect a bus buffer between the host side and the device side. This is muxed

with eSDHC-4 interfaces.

The pulse-width modulator (PWM) has a 16-bit counter and is optimized to

generate sound from stored sample audio images. It can also generate tones.

The PWM uses 16-bit resolution and a 4x16 data FIFO to generate sound.

Unified RAM, can be split between Secure RAM and Non-Secure RAM

Supports secure and regular Boot Modes

i.MX51A Automotive and Infotainment Applications Processors, Rev. 2

Freescale Semiconductor

7

Preliminary—Subject to Change Without Notice

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