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PDF I.MX31L Datasheet ( Hoja de datos )

Multimedia Applications Processors - Freescale Semiconductor

Número de pieza I.MX31L
Descripción Multimedia Applications Processors
Fabricantes Freescale Semiconductor 
Logotipo Freescale Semiconductor Logotipo
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I.MX31L datasheet

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I.MX31L pdf
The following techniques are used to reduce static power consumption:
• Active Well Bias (AWB)
• Power gating
• A variety of low-power modes
• Special techniques for fast wake-up times from low-power modes
The following techniques are used to reduce dynamic power consumption:
• Dynamic process and temperature compensation
• Automatic dynamic voltage frequency scaling
• Low-power clocking scheme
Features
2.3 External Memory Interface (EMI)
To allow the maximum number of potential designs, the External Memory Interface of the i.MX31 and
i.MX31L processors provide support for the following memory types:
• SRAM, NOR Flash and PSRAM—32/16-bit, Disk-On-Chip
• SDRAM, SyncFlash™, VSyncFlash™—133 MHz, 32/16-bit
• DDR—266 MHz, 32/16-bit
• NAND Flash and SmartMedia (dedicated 8-bit, shared 16-bit)
2.4 Smart Multimedia
Multimedia is one of the most important features for today’s mobile devices. The i.MX31 and i.MX31L
processors’ Smart Multimedia not only provide support, but more importantly, they provide multimedia
hardware acceleration for a wide variety of multimedia applications at performance levels that are the
equivalent of ARM11 processor performance of more than 3 GHz. The optimized hardware acceleration
enables some typical applications to operate without ARM CPU involvement—for example, the
viewfinder.
The i.MX31 and i.MX31L processors’ Smart Multimedia are able to do the following:
• Enable simultaneous MPEG4 Simple Profile (SP) video encoding and decoding.
• Support real-time video decode in any of the following advanced formats:
— MPEG4 Simple Profile (SP)
— H.264
— WMV (Windows Media™ Video)
— RV (RealVideo™)
— MPEG2
— DiVX
• Provide video and image data pre/post-processing (resizing, color conversion, filtering) that is fully
hardware accelerated.
i.MX31 and i.MX31L Multimedia Applications Processors Product Brief, Rev. 0.6
Freescale Semiconductor
5

5 Page

I.MX31L arduino
Features
2.7 Sensor Port
The sensor port provides a connection to either one or two image sensors, of which only one sensor can be
active at any given time. The sensor port supports direct parallel interface to either CMOS or CCD sensor
controllers using parallel interface with widths of 12-bit, 10-bit, 8-bit, or 4-bit wide and at data bus rates
up to 60 MHz. The sensor port may be configured to perform output of a still image to a non-contiguous
memory buffer, enabling efficient memory use under open OS.
2.8 System Connectivity
Figure 7 shows an example of the i.MX31 and i.MX31L processors’ connectivity with a rich set of external
devices.
Microphone
Speaker
Analog Joystick
Power Management IC
USB Host/Device
Touch Screen
BT
Audio SSI
Voice SSI
Baseband IPC
AUDMUX
USB
Host 1
SSI1
UART 2
USB Host/Device
USB
Host 2
WLAN
MMC
SDIO 2
SD Card data
MMC
SDIO 1
PCMCIA
GPS
Fast
IrDA
Tamper
Detection
Serial
EPROM
USB
OTG
SPI 1
UART 1
UART 3
FIRI
GPIO
1-Wire UART 5
SSI2
i.MX31/i.MX31L
External
Memory
Interface
(EMI)
Mouse
Keyboard
133 MHz
16/32-bit
SDRAM
8/16 NAND
Flash
DOC
SIM I2C
Image Processing Unit
Keypad
ATA SPI 2
To Baseband
8x8
Keypad
PC PC
Card Card
Sensor 1
Sensor 2
Parallel
Display 1
Display 2
Serial
LCD
ATA-6
Hard Drive
TV
Decoder
TV
Encoder
Figure 7. i.MX31 and i.MX31L Connectivity Example
MIDI
i.MX31 and i.MX31L Multimedia Applications Processors Product Brief, Rev. 0.6
10 Freescale Semiconductor

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