LSI 21003 - Manual (Page 13)

Interface Descriptions 1-3
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Fast, Ultra, Ultra2, and Ultra160 data transfer capability
•
SCSI Termination Power (TERMPWR) source with autoresetting
circuit breaker
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Supports SE and LVD signaling with automatic termination
– Channel A is SE only with autosense termination
– Channel B is SE or LVD with termination permanently enabled
•
Performs complex bus sequences without interrupts, including
restore data pointers
•
SCSI Plug and Play
•
Flash ROM for BIOS storage
•
Serial EEPROM for each channel for user configuration utility
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SCSI activity connector for external LED
•
LSI53C1010-33 PCI Dual Channel SCSI Multifunction Controller
includes 8 Kbytes internal RAM per channel for SCRIPTS instruction
storage
1.2.3 Board Characteristics
The board characteristics are:
•
PCI board dimensions: approximately 177.8 x 83.8 mm
(7.0 x 3.3 inches)
•
Universal 32-bit PCI card edge connector
•
ISA/EISA bracket
1.3 Interface Descriptions
This section provides an overview of the PCI Interface, the SCSI
Interface, and the SCSI Activity LED Interface. It also provides
information about cabling.
1.3.1 The PCI Interface
PCI is a high-speed standard local bus for interfacing a number of I/O
components to a PC processor and memory subsystem. The PCI