TMS320DM357 datasheet(3/195 Pages) TI

3 / 195 page

TMS320DM357

Digital Media System-on-Chip

www.ti.com

SPRS553 – NOVEMBER 2008

The Video Processing Back-End (VPBE) is comprised of an On-Screen Display Engine (OSD) and a

Video Encoder (VENC). The OSD engine is capable of handling 2 separate video windows and 2 separate

OSD windows. Other configurations include 2 video windows, 1 OSD window, and 1 attribute window

allowing up to 8 levels of alpha blending. The VENC provides three analog DACs that run at 54 MHz,

providing a means for composite NTSC/PAL video, S-Video, and/or Component video output. The VENC

also provides up to 24 bits of digital output to interface to RGB888 devices or hi-speed triple DACs such

as the THS8200. The digital output is capable of 8/16-bit BT.656 output and/or CCIR.601 with separate

horizontal and vertical syncs.

The Ethernet Media Access Controller (EMAC) provides an efficient interface between the DM357 and the

network. The DM357 EMAC support both 10Base-T and 100Base-TX, or 10 Mbits/second (Mbps) and 100

Mbps in either half- or full-duplex mode, with hardware flow control and quality of service (QOS) support.

The Management Data Input/Output (MDIO) module continuously polls all 32 MDIO addresses in order to

enumerate all PHY devices in the system. Once a Ethernet PHY candidate has been selected by the

ARM, the MDIO module transparently monitors its link state by reading the PHY status register. Link

change events are stored in the MDIO module and can optionally interrupt the ARM, allowing the ARM to

poll the link status of the device without continuously performing costly MDIO accesses.

The HPI, I2C, SPI, and USB2.0 OTG ports allow DM357 to easily control peripheral devices and/or

communicate with host processors. The DM357 also provides multimedia card support, MMC/SD, with

SDIO support.

The rich peripheral set provides the ability to control external peripheral devices and communicate with

external processors. For details on each of the peripherals, see the related sections later in this document

and the associated peripheral reference guides.

The DM357 has a complete set of development tools for the ARM926EJS. These include C compilers and

a Windows™ debugger interface for visibility into source code execution.

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Digital Media System-on-Chip (DMSoC)

TMS320DM357 Datasheet(PDF) 3 Page - Texas Instruments