LSI SYM8953U - Manual (Page 13)

3.75 pc 10.25 pc 11.25 pc 38.25 pc
4.333 pc
48.583 pc
52.5 pc
34.5 pc
44.25 pc
Interface Descriptions 1-3
•
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
1.2.3 Board 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.