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System LSI chips tailored for STBs with hard drives

Posted: 01 Jun 2007 ?? ?Print Version ?Bookmark and Share

Keywords:system LSI chips? internal USB? on-chip security? STB apps?

New EMMA system LSI chips from NEC

NEC Electronics today introduced two new additions to its acclaimed EMMA lineup of system LSI chips for digital AV devices. The EMMA2SE (part number ?PD61140) and the EMMA2SE/P (part number ?PD61142) are designed for STBs with internal HDDs.

The chips include all of the key functions needed for reception, recording and playback of DTV broadcasts, in a single-chip solution. Compared to the previous generation EMMA2 device, the EMMA2SE and EMMA2SE/P parts offer higher performance to enable smoother execution of common middleware, higher integration to lower BOM costs and software compatibility to shorten development times, said NEC. Both chips also offer a second independent TV or DVD recorder output. The EMMA2SE/P also has additional security features for content protection. The main features of EMMA2SE and EMMA2SE/P are as follows:

Integrated functions
The new parts offer an enhanced CPU and memory interface, an integrated MIPS32 4KEC microprocessor core capable of executing 284MIPS. Moreover, the chips utilize a new 1Gbit DDR SDRAM interface capable of operating at 266MHz, as compared to the 512Mbit 133MHz SDRAM interface employed in the EMMA2 predecessors. The improved performance from these new features enable smooth operation of middleware such as MHEG and MHP commonly employed in STBs, said NEC.

A USB host controller and oscillator are incorporated on-chip, which facilitates transfer of stored data between the STBs and peripheral devices such as flash memory readers or digital cameras. The reduction in external components also helps to lower BOM costs.

The software for EMMA2SE and EMMA2SE/P is compatible with the software used in NEC's previous EMMA devices, allowing customers to shorten development times through the use of their existing software resources when designing new systems. Moreover, the EMMA2SE/P also incorporates advanced on-chip security features needed to protect and ensure the integrity of valuable audio-visual content. By detecting content protection violations at startup, the EMMA2SE/P helps to prevent illegal operation of STBs and preserve the intellectual property of conditional access vendors and broadcasters worldwide.

The EMMA2SE and EMMA2SE/P also offer the unique ability to deliver dual output, enabling an STB to simultaneously stream different video content to a TV as well as an external recording device such as a DVD recorder or VCR.

Samples of the EMMA2SE and EMMA2SE/P will be available starting this month June, priced at $30 and $35, respectively.

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