Feeds

IBM licenses Rambus XDR interface

Preparing PlayStation 3 parts?

  • alert
  • submit to reddit

IBM has licensed a key component of Rambus' XDR memory technology, the XIO memory controller interface cell.

It's perhaps no great surprise. Sony is an XDR licensee and is to use the high-speed consumer electronics-oriented memory technology in next year's PlayStation 3 console. The 256MB of XDR DRAM in the machine will be placed at the disposal of the unit's CPU, the IBM co-designed Cell processor.

Since IBM is making the system logic chippery, not to mention the PowerPC-derived processor, it needs some way of controlling the XDR, hence the need to licence XIO. The chipset will be fabbed at 90nm, reading between the lines of Rambus' press announcement.

XIO is separate from the memory controller, instead maintaining providing the link between the memory and the device that manages it. According to Rambus, the XIO "provides a wide, on-chip, CMOS-level signalling interface to the memory controller logic and a narrow, high-speed Differential Rambus Signalling Level interface to the external XDR memory system". ®

Related stories

Rambus counter sues Samsung
Samsung countersues Rambus
Rambus sues Samsung
Sony details PlayStation 3
Samsung ships 256Mb XDR chips
Rambus renames Yellowstone as XDR DRAM

Whitepapers

Go beyond APM with real-time IT operations analytics
How IT operations teams can harness the wealth of wire data already flowing through their environment for real-time operational intelligence.
Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
10 threats to successful enterprise endpoint backup
10 threats to a successful backup including issues with BYOD, slow backups and ineffective security.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.