LSI 8751D - Manual (Page 14)

1-2 Describing the LSI8751D
1.2 Features
This section provides an overview of the PCI interface, the SCSI
interface, and board characteristics for the LSI8751D.
BIOS support for this host adapter is incorporated on the board in an
8 x 64 Kbytes Flash BIOS.
1.2.1 PCI Interface
PCI is a high-speed standard local bus for interfacing a number of I/O
components to the processor and memory subsystems in a high-end PC.
The PCI functionality for the LSI8751D is contained within the
LSI53C875J PCI to SCSI I/O Processor chip. The LSI53C875J connects
directly to the PCI bus and generates timing protocol that complies with
the PCI specification.
The PCI interface on the LSI8751D supports these features:
•
Full 32-bit DMA bus master
•
Zero wait-state bus master data bursts
•
Universal 5 V or 3.3 V PCI bus voltage
•
PCI Local Bus Specification, Revision 2.1 compliance
1.2.2 SCSI Interface
The SCSI functionality for the LSI8751D is contained within the LSI53875
controller chip. The LSI53C875 connects directly to the SCSI bus and
generates timing and protocol in compliance with the SCSI standard.
The SCSI interface on the LSI8751D operates as a 16-bit, synchronous
or asynchronous, HVD bus, and supports Ultra SCSI protocols and 16-
bit arbitration. The LSI8751D provides HVD SCSI termination as a
pluggable terminator. This terminator plugs into either the internal or
external 68-pin high density connector (J2 or J3).
The SCSI interface for this board supports these features:
•
16-bit HVD
•
External plug-in termination supplied with board