Renesas Technology Releases 32-Bit SuperH Family SH7650 Offering Industry's First Single-Chip Implementation of DTCP-IP Content Protection Standard Compatible Functions

More and more home appliances are being connected to a home network. Connecting appliances in the home to a home network makes it possible, for example, for a program recorded on a DVD recorder in the living room to be transferred to and viewed on a DVD recorder or TV set in another room. Among such digital audiovisual devices appearing on the market are models equipped with an Ethernet connection terminal as an Ethernet function, and this trend is expected to increase in the future.

At the same time, it is essential for authentication and encryption processing to be carried out between devices when transferring copyright protected digital content via a network in order to protect content on the network from unauthorized access.

For this market, Renesas Technology has developed the SH7650 32-bit SuperH Family microprocessor incorporating DTCP-IP content protection standard compatible functions and an Ethernet controller.

<Product Details>

The SH7650 incorporates a 32-bit SH-2 CPU core. With processing power of 173 MIPS (million instructions per second) at a maximum operating frequency of 133 MHz, the SH7650 is ideal for use in devices equipped with DTCP-IP content protection standard compatibility and network functions.

DTCP-IP compatible functions provided in the SH7650 comprise a hardware encryption circuit block, and firmware for encryption circuit block and content data transfer control.

Copyright protected digital content transferred via a network must be protected from unauthorized access by means of mutual authentication between devices and content encryption, and it is also necessary for encrypted content to be similarly protected from unauthorized access within the device. The SH7650 includes three MPEG-TS port channels for moving image streaming enabling high-speed transfer of MPEG-2^*6 TS (Transport Stream) format data.  These ports can be connected to an MPEG-2 encoder/decoder chip, enabling encrypted data received via a network to be decrypted, and transferred to an MPEG-2 chip at high speed as MPEG-2 TS format moving image data. Also, performing high-speed encryption of content data by means of the on-chip encryption circuit before transmission via a network makes it possible to achieve secure network transfer of digital content including high definition data.

Thus, DTCP-IP support functions are implemented by means of a hardware encryption circuit block and moving image streaming ports, together with firmware (software), as described above.  Having processing performed automatically by firmware makes it unnecessary for the user to directly control DTCP-IP support functions, and enables DTCP-IP compatible content transfer to be performed in the same way as normal network transfer. This firmware is provided together with the SH7650 as a set.

The SH7650 also includes a comprehensive range of peripheral functions.

A single-channel Ethernet controller is provided that facilitates connection to a 10/100 Mbps Ethernet LAN. This Ethernet controller incorporates an IEEE802.3 compliant MAC layer, and an accelerator that performs TCP/IP checksum computations automatically without software intervention, reducing the load on the CPU.

A PCI bus controller is included as an interface to external devices. This allows easy connection to a platform for the PCI bus, which is widely used in home electrical appliances, PCs, office automation equipment, and so forth. An on-chip host interface is also provided, facilitating connection to a main microprocessor for system control or the like. This interface allows recognition of the SH7650 by a main microprocessor as an SRAM-equivalent device, enabling data downloaded via a network to be transferred to the main microprocessor at high speed.

Use of these external interface functions not only allows network connection functions to be developed in parallel with basic user system functions, enabling development time to be shortened, but also facilitates functional upgrading of an existing system through the addition of an Ethernet connection function.

The package used is a 336-pin CSP (17 mm x 17 mm).

On-chip debugging functions are provided, enabling real-time debugging to be carried out at the maximum operating frequency. The small, PC card sized E10A-USB can be used as an emulator.

Renesas Technology will continue to extend its lineup of products with an on-chip Ethernet controller, including the provision of models offering faster CPU performance, wireless LAN support, and enhanced peripheral functions.

* Other product names, company names, or brands mentioned are the property of their respective owners.



<Typical Applications>

The following devices equipped with a network connection function :

<Important Note>

A license must be obtained from the DTLA (Digital Transmission Licensing Administrator) when purchasing this product.



<Specifications>