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LeCroy > Protocol Analyzers
PRODUCTS LeCroy > Protocol Analyzers
SATA (Serial ATA)

Protocol Analyzers

 

Verify with insight on message layer

 

 

LeCroy is a leading provider of protocol analyzers and verification tools for existing and emerging digital communications standards. Designed to generate, capture, and analyze high-speed communications traffic, LeCroy’s tools help developers to discover and correct persistent and intermittent errors and flaws in their product design

 

 

 


 

SATA (Serial ATA)

Serial ATA (SATA) is a data transfer technology designed to move data to and from storage devices such as disk drives, ATAPI drives, host bus adapters (HBA), and port multipliers. SATA is a serialized enhancement and replacement to parallel IDE. Since SATA ratification in 2003 and its move to 6Gbps in 2008, LeCroy has continued to support and innovate with its industry leading protocol analysis and traffic generation capabilities.

 

 

Overview

 

Serial ATA Test and Verification: LeCroy's protocol analysis tools are designed from the ground up to address these unique characteristics of Serial ATA. LeCroy's analysis and design suites are developed specifically for use with the SAS and SATA protocols, and provide extensive protocol decoding, expert error analysis, and complete user support when decoding and viewing the recorded traffic. This extensive protocol support, combined with the different traffic views, advanced triggering, data filtering, traffic generation, and error injection capability, allows engineers to rapidly become familiar with SATA-specific issues, and quickly understand new issues the first time they encounter them.

LeCroy provides everything needed for Serial ATA analysis including real-time hardware triggering and filtering on the critical components of Serial ATA traffic. LeCroy's Expert Analysis software simplifies the overall debug process by using collapsible, color-coded packets to represent commands, FISs and primitives. This provides point-and-click "drill down" to lower level details along with the ease of use and understanding that LeCroy is well known for.

 

Learn more about SATA (Serial ATA)Technology

 

SATA (Serial ATA) Overview

The storage industry is in the midst of a large-scale transition from parallel ATA, the dominant desktop storage interface, to Serial ATA. This migration reflects a broader transition across the industry to Serial technologies for computer-based communications. Driven primarily by lower voltages and costs required in future chipsets, Serial ATA is poised for industry-wide adoption. The specification thoughtfully preserves software compatibility with the Parallel ATA command set. What's more, it offers smaller, thinner, lower cost cables that also offer compatibility at the physical layer with the emerging Serial Attached SCSI (SAS) standard.

 

Features

* Performance - Parallel ATA does not have scalability to support several more 

  speed doublings, and it is nearing its performance capacity. By contrast, Serial 

  ATA defines a roadmap starting at 1.5 gigabits per second (equivalent to a data

  rate of 150 MB/s) up to 6Gigabits per second.

 

* Lower Voltage - Parallel ATA's 5-volt signaling requirement will be increasingly

  difficult to meet as the industry continues to reduce chip core voltages. Serial

  ATA is better aligned with future manufacturing processes. It reduces signaling

  voltages to approximately 250 millivolts (1/4 volt).

 

* Pin Count - Currently, the parallel ATA interface has 26 signal pins going into

  the interface chip. Serial ATA uses only 4 signal pins, improving the pin

  efficiency  and accommodating a highly integrated chip implementation.

 

* Improved Cabling - Parallel ATA bulky ribbon cables contain 40-pin header

  connector. Serial ATA introduces thin, flexible cabling scheme that offers longer

  cables and improved airflow within the chassis.

 

* Software Compatible - Serial ATA is compatible at the register level with

  parallel ATA. This means Serial ATA requires no changes to existing software  

  and operating systems in order to function, and it provides backward 

  compatibility with existing operating environments.

 

* SAS Compatibility - A significant feature offered by Serial ATA is the

  expectation that SATA will be form-factor compatibility with Serial Attached

  SCSI. SATA drives will plug directly into Serial Attached SCSI connectors and if

  supported in the system, will transparently operate as a SATA device. This

  allows systems to be deployed that can use either Serial Attached SCSI drives,

  for their high performance or SATA drives that will provide a lower-cost-per-

  megabyte storage platform.

 

Architecture

 

* Serial ATA is a full duplex protocol. There is a continuous flow of signals from

  each device moving down the bus. The device and host are transmitting (TX)

  and receiving (RX) at the same time.

 

* Bidirectional traffic pattern eliminates the need for bus negotiation overhead

 

* Data characters vs Primitives - Primitives are the simplest elements within the

  Serial ATA protocol. Primitives are 32-bit DWORDs used to initiate control of

  the serial line functions (X_RDY, CONT, etc...). In addition to these

  "handshaking" and flow control signals, Primitives are also used to delimit or

  "frame" user data.

 

* Frame Information Structure (FIS) - A frame is an indivisible unit of information

  exchanged between a host and device. A frame consists of a SOF primitive, a

  Frame Information Structure (FIS), a CRC calculated over the contents of the FIS,

  and an EOF primitive. A FIS is the user payload of a frame; a frame is a group

  of Dwords that convey information between host and device as described

  previously.

 

Products

 

SATA Sierra M6-4   Complete solution for Serial Attached SCSI (SAS) and Serial

                          ATA (SATA) Protocol verification

SATA Sierra M6-2   Complete solution for Serial Attached SCSI (SAS) and Serial

                          ATA (SATA) Protocol verification

SATA Sierra M6-1   STX M6-1 SATA Protocol Verification System

SATA STX A6-4S   STX A6-4S SATA 6G Analyzer System

SATA STX-131   STX-131 SATA 3.0 & 1.5G 1 Port Analyzer System and SATA I/O

                     Compliance Suite

SATA STX-231   Complete solution for Serial Attached SCSI (SAS) and Serial ATA

                     (SATA) Protocol verification

SATA InFusion 3G   SATA Error Injector for Real World Fault Handling and Error

                          Recovery