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Legacy mode is a software backward-compatibility mechanism intended to allow the SATA controller to run in legacy operating systems which are not SATA-aware or where a driver does not exist to make the operating system SATA-aware. When a SATA controller is configured to operate in IDE Mode, the number of storage devices per controller is ...
Hence, its protocol is usually ATA (a.k.a. PATA), SATA, SCSI, FC or SAS. The front-end interface communicates with a computer's host adapter (HBA, Host Bus Adapter) and uses: one of ATA, SATA, SCSI, FC; these are popular protocols used by disks, so by using one of them a controller may transparently emulate a disk for a computer.
A 3.5-inch Serial ATA hard disk drive A 2.5-inch Serial ATA solid-state drive. SATA was announced in 2000 [4] [5] in order to provide several advantages over the earlier PATA interface such as reduced cable size and cost (seven conductors instead of 40 or 80), native hot swapping, faster data transfer through higher signaling rates, and more efficient transfer through an (optional) I/O queuing ...
CTL-I (Controller Interface) [3] was an 8-bit word serial interface introduced by IBM for its mainframe hard disk drives beginning with the 3333 in 1972. [4] The 3333 was the first unit in a string of up to eight 3330 type hard disk drives ; it contained a CTL-I controller and two 3330 type disk drives.
There are three options available for the logical device interfaces and command sets used for interfacing with storage devices connected to a SATA Express controller: [6] [8] Legacy SATA Used for backward compatibility with legacy SATA devices, and interfaced through the AHCI driver and legacy SATA 3.0 (6 Gbit/s) ports provided by a SATA ...
SATA Express and M.2 are also supported, providing the ability for interfacing with PCI Express-based storage devices. Each of the X99's SATA Express ports requires two PCI Express 2.0 lanes provided by the chipset, while the M.2 slots can use either two 2.0 lanes from the chipset itself, or up to four 3.0 lanes taken directly from the processor.
With the Intel 5 Series chipset in 2008, the southbridge became redundant and was replaced by the Platform Controller Hub (PCH) architecture introduced. AMD did the same with the release of their first APUs in 2011, naming the PCH the fusion controller hub (FCH), which was only used on AMD's APUs until 2017 when it began to be used on AMD's Zen ...
TRS-80 Model 1 Level 1 BASIC cassette tape interface: 250 bit/s: 32 B/s: 1977 C2N Commodore Datasette 1530 cassette tape interface: 300 bit/s: 15 B/s: 1977 Apple II cassette tape interface: 1.5 kbit/s: 200 B/s: 1977 Amstrad CPC tape: 2.0 kbit/s: 250 B/s: 1984 Single Density 8-inch FM Floppy Disk Controller (160 KB) 250 kbit/s: 31 KB/s: 1973