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PM8388 SXP 24x3G
24 Port SAS Expanders

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Version Issue Date

Product Brief

PDFPM2319-KIT/PM2422-KIT SXP 36x3G and SXP 24x3G Evaluation Kit Product Brief [102 KB] PMC-2041345 2  2007-10-19 
PDFPM8388 SXP 24x3G 24-Port SAS Expander Short Form Data Sheet [62 KB] PMC-2041219 2  2005-05-24 

Application Note

Locked Document, Log In RequiredPDFSIGNAL INTEGRITY FOR PMC-SIERRA 3.125/2.488/1.5GBPS LINKS [452 KB] PMC-2010750 3  2002-07-31 

Symbols/Footprints

  Version Issue Date
Locked Document, Log In RequiredZipped FilePMC-2041671 PM8388 SXP 24x3G 352 CSBGA CAD Symbols and Footprints [473 KB]12004-09-22

Features

GENERAL

  • Flexible 24-port SAS Expander device
  • Virtual SSP target/initiator port
  • Low-latency connection arbitration
  • Supports table routing of 1024 entries, direct routing and subtractive routing
  • Integrated non-blocking cross bar switch allowing any-port to any-port connections
  • Arbitrary SAS wide port configurations
  • STP bridge function allows either SAS or SATA target devices to be attached to any port
  • Integrated RISC processor for SAS SMP functions and SES support
  • Three configurable multi-master or slave mode TWI interfaces for device configuration and control of external interfaces
  • UART interface for debugging support
  • SFF-8485 compliant Serial GPIO (SGPIO) interface provides expansion for up to 144 GPIOs

HIGH SPEED I/O

  • 1.5 Gbit/s and 3.0 Gbit/s operation
  • Automatic negotiation of link speed
  • Accepts Spread Spectrum Clocking (SSC) from SATA HDDs
  • Programmable transmit pre-emphasis and receiver equalization
  • Programmable transmit output swing to support both SATA and SAS levels
  • Integrated resistive termination and receiver AC coupling

STATISTICS & PERFORMANCE MONITORING

  • Per-port error counters to provide comprehensive diagnostic functions
  • Programmable performance monitoring counters and interrupt generation
  • Each link incorporates PRBS and CJPAT pattern generators and checkers for link-integrity diagnostics

FIRMWARE DEVELOPMENT KIT

  • SES API for utilizing SES pages and commands over the SAS link
  • SCSI-3 API for underlying access to the SAS Port
  • SAS link layer, SMP & SSP Transport Layer protocols
  • SMP routing management including topology discovery
  • API for downloading firmware over the SAS link
  • Expander Diagnostics API
  • Disk spin-up control
  • Peripheral Drivers for TWI, UART, SGPIO, Timer

PHYSICAL

  • Built in 0.13 µm (1.2 V core and 3.3 V I/O supply) CMOS technology
  • Packaged in a 27 mm x 27 mm 352-pin CSBGA

Applications

  • SAS/SATA Storage Enclosure
  • SAS Fanout Expander
 
 
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