In August, Marvell introduced a potent PCIe SSD controller with four Gen3 lanes
and support for the NVM Express protocol. Marvell chipset is back with a
toned-down version designed for slim tablets, convertibles, and "Chrome devices." The new chipset is also destined for "value-line client" SSDs, so it could pop up in drives suitable for desktop PCs.
Source: Marvell
The Marvell chipset 88NV1140 has a single Gen3 lane with 1GB/s of peak
interface bandwidth—the same maximum speed as the dual-lane Gen2 link in
Intel's 9 Series chipsets. It's powered by dual ARM Cortex-R5 CPU cores, and it
supports the AHCI and NVMe protocols. There's no word on the number of
memory channels, but we've asked Marvell for clarification.
Thanks to NANDEdge error correction inherited from Marvell's latest SATA SSD
controller, the new silicon works with TLC and 3D NAND in addition to the usual
MLC and planar varieties. This Marvell chipset is fabbed on a 28-nm process and
comes on a tiny 8 x 8 mm package. Drives can be built on form factors as small
as M.2 2230, which has a miniscule 22 x 30 mm footprint. The controller can also
be deployed on multi-chip packages with integrated SRAM, removing the need for
an external DRAM chip.
It is said that Marvell chipset 88NV1140's NVMe implementation has "passed in-house SSD
validation and third-party operating system and platform compatibility testing."
The AHCI plumbing is apparently still awaiting approval, as is the controller's
6Gbps SATA twin, the 88NV1120.
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