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Renesas, Arcturus take SuperH RISC to VoIP market

Posted: 09 Feb 2005 ?? ?Print Version ?Bookmark and Share

Keywords:superh? risc? processor? arcturus networks? router?

Renesas Technology Corp. is bringing its SuperH RISC processor to voice-over-Internet Protocol market with the help of Arcturus Networks Inc., a developer of telephony reference platforms.

Two separate turnkey platforms for voip routers or gateways and VoIP clients based on the Session Initiation Protocol (SIP) have been introduced by the partners. Arcturus CEO Rich Larsen said his company, specialists in firmware development for a range of processors, has been turning to a wider array of VoIP reference platforms because "VoIP is not just about making telephone calls for less money, but for enabling the additional functionality an IP network provides."

The two companies will offer hardware design kits jointly, with subsequent software licenses going to Arcturus and device purchases going to Renesas.

The SH7710 VoIP router/gateway has four autosensing 10/100 Ethernet LAN ports and a single 10/100 WAN port. Three RJ-11 connectors on the board support dual FX voice channels and a standard PSTN FX0 fail-over port. Firmware and processor support all major voice codecs, including G.711, G.723, G.726 and G.729ab.

The SH7710 system-in-package (SiP) adapter and personal gateway provides SIP and SiP in both software and hardware. The SiP module combines a SuperH processor with 4 megabytes of flash and 8 megabytes of SDRAM in a single-chip hybrid. The small client card, intended for telephony adapters in homes and businesses, integrates dual analog telephone jacks (for FXS voice), two separate autosensing Ethernet RJ-45 ports (one for the LAN and one for the WAN) and a 12V AC power port. The firmware includes a full codec suite, support for SIP clients and a real-time protocol stack.

Tokyo-based Renesas and Arcturus also are planning to release a small adapter for digital cordless phones. It is based on the SH7619 and dubbed "SIPjack" for its support of Session Initiation Protocol. The new adapter will integrate a single analog phone and Ethernet ports to upgrade cordless phones for VoIP.

Future joint projects include a full media-gateway reference based on the SH7763, an integrated wireless handset suite and a gigabit telephony reference based on SH-X.

- Loring Wirbel

EE Times





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