LSI SYM8953U manual Interface Descriptions, Board Characteristics

•Contains external 68-pin High Density (HD) and internal 68-pin HD latching connectors

•Performs wide Ultra2 SCSI LVD synchronous transfers up to 80 Mbytes/s

•Supports SCSI synchronous offset up to 31

•Provides SCSI termination power (TERMPWR) source with autoresetting circuit protection device

•Supports SCSI Configured AutoMatically (SCAM) Level 1 Capability (Set “OFF” by default)

•Utilizes flash ROM for BIOS storage for up to 256 Kbytes

•Supports variable block size and scatter/gather data transfers

•Performs complex SCSI bus sequences without interrupts, including restore data pointers

•Has serial EEPROM for user configuration utility

•Has SCSI bus activity LED connector and on-board LED

1.2.3Board Characteristics

•PCI board dimensions,

152.4 x 88.90 mm (6.00 x 3.5 inches)

•PCI Universal 32-bit card edge connector

•HD 68-pin external connector

•HD 68-pin internal connector

A mechanical drawing showing board dimensions and component layout is located in Appendix A, “Technical Specifications”.

1.3 Interface Descriptions

This section provides a more detailed explanation about the PCI Interface, the SCSI Interface, Ultra2 SCSI Technology, and LVD Link™ Technology.

Interface Descriptions 1-3