1.1
Device Overview
1.2
Block Diagram
SPRUFX7 – July 2008
Introduction
The TMS320DM335 processor is a low cost, low power processor providing advanced graphical user
interface for display applications that do not require video compression and decompression. Coupled with
a video processing subsystem (VPSS) that provides 720p display, the DM335 processor is powered by a
135/216/270 MHz ARM926EJ-S core so developers can create feature rich graphical user interfaces
allowing customers to interact with their portable, electronic devices such as video-enabled universal
remote controls, Internet radio, e-books, video doorbells and digital telescopes. The new DM335 is packed
with the same peripherals as its predecessor, the device, including high speed USB 2.0 on-the-go,
external memory interface (EMIF), mobile DDR/DDR2, two SDIO ports, three UART Ports, two Audio
Serial Ports, three SPI Ports and SLC/MCL NAND Flash memory support. These peripherals help
customers create DM335 processor-based designs that add video and audio excitement to a wide range
of today's static user-interface applications while keeping silicon costs and power consumption low. The
new digital media processor is completely scalable with the device processor and Digital Video Evaluation
Board (DVEVM), allowing customers to utilize their same code for their new DM335 processor focused
designs.
The new DM335 device delivers a sophisticated suite of capabilities allowing for flexible image capture
and display. Through its user interface technology, such as a four-level on-screen display, developers are
able to create picture-within-picture and video-within-video as well as innovative graphic user interfaces.
This is especially important for portable products that require the use of button or touch screen, such as
portable karaoke, video surveillance and electronic gaming applications. Additional advanced capture and
imaging technologies include support for CCD/CMOS image sensors, resize capability and video
stabilization. The 1280-by-960-pixel digital LCD connection runs on a 75-MHz pixel clock and supports TV
composite output for increased expandability. This highly integrated device is packaged in a 13 x 13 mm,
337 pin , 0.65 mm pitch BGA package.
The device consists of the following primary components and sub-systems:
•
ARM Subsystem (ARMSS), including the ARM926 RISC CPU core and associated memories
•
Video Processing Subsystem (VPSS), including the Video Processing Front End (VPFE), Image Input
and Image Processing Subsystem, and the Video Processing Back End (VPBE) Display Subsystem
•
A set of I/O peripherals
•
A powerful DMA Subsystem and DDR2/mDDR EMIF interface
Introduction
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SPRUFX7 – July 2008