Feeds

Fat NAND controllers to slim down

NAND controllers to lose die-dependent functions 

Internet Security Threat Report 2014

Micron says some flash controller jobs are going to migrate down stack towards the NAND chips, freeing up controller manufacturers from chip-dependent work they shouldn't be doing.

It sees low-level flash controllers developing and taking on error management, taking this job away from existing NAND controllers.

Micron takes the view that today's NAND controllers carry out both die-specific and application-specific functions. They should only carry out application-specific functions and leave the die-specific stuff to the flash fab owners. Micron's Kevin Kilbuck, a strategic marketing director, says error correction and checking (ECC) and broader error management functions are die-specific whereas block management and wear-levelling are application dependent. How these are carried out on USB, tablet and enterprise storage array flash, for example, are very different, hence Micron's strategy.

Kilbuck says the benefit is that controller development can carry on without being hog-tied to specific NAND die technology implementations.

Micron is not interested in developing general NAND controllers and taking on SandForce, Pliant and other controller technology companies. Instead it sees a way to add value to its flash dies with its ClearNAND technology. Kilbuck anticipates similar products from Micron's flash fab competitors: "We know we're not alone."

Kilbuck says ClearNAND is an ASIC that sits between a NAND controller and the flash dies. It is not an IMTF (Intel Micron Flash Technologies) product, only a Micron product, and has a raw NAND-like interface from both directions: the NAND dies below and the NAND controller above.

Micron will add digital signal processing technology to its ClearNAND in future, seeing this as die-dependent. It thus poses a threat to Anobit, which is developing a line of controllers, using DSP to extend SSD endurance.

By 2014, Micron sees the flash market split between raw NAND, part-managed ClearNAND type product, and fully-managed NAND, which may well be seen in mobile phones. Micron has an eMMC controller, which provides fully-managed NAND for such devices. ®

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
Azure TITSUP caused by INFINITE LOOP
Fat fingered geo-block kept Aussies in the dark
NASA launches new climate model at SC14
75 days of supercomputing later ...
Yahoo! blames! MONSTER! email! OUTAGE! on! CUT! CABLE! bungle!
Weekend woe for BT as telco struggles to restore service
You think the CLOUD's insecure? It's BETTER than UK.GOV's DATA CENTRES
We don't even know where some of them ARE – Maude
Cloud unicorns are extinct so DiData cloud mess was YOUR fault
Applications need to be built to handle TITSUP incidents
BOFH: WHERE did this 'fax-enabled' printer UPGRADE come from?
Don't worry about that cable, it's part of the config
Stop the IoT revolution! We need to figure out packet sizes first
Researchers test 802.15.4 and find we know nuh-think! about large scale sensor network ops
DEATH by COMMENTS: WordPress XSS vuln is BIGGEST for YEARS
Trio of XSS turns attackers into admins
prev story

Whitepapers

Choosing cloud Backup services
Demystify how you can address your data protection needs in your small- to medium-sized business and select the best online backup service to meet your needs.
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.
Seattle children’s accelerates Citrix login times by 500% with cross-tier insight
Seattle Children’s is a leading research hospital with a large and growing Citrix XenDesktop deployment. See how they used ExtraHop to accelerate launch times.
5 critical considerations for enterprise cloud backup
Key considerations when evaluating cloud backup solutions to ensure adequate protection security and availability of enterprise data.
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?