參數(shù)資料
型號(hào)： ULTRA160
英文描述： 8-bit MCU with single voltage Flash memory, ADC, 16-bit timers, SPI, SCI interfaces
中文描述： Ultra160的SCSI到PCI主機(jī)適配器用戶指南1.1版10/01
文件頁(yè)數(shù)： 45/54頁(yè)
文件大小： 504K
代理商： ULTRA160
Ultra160 SCSI to PCI Host Adapters
A-1
Appendix A
Glossary of Terms and
Abbreviations
Active
Termination
The electrical connection required at each end of the SCSI bus,
composed of active voltage regulation and a set of termination resistors.
Ultra, Ultra2, and Ultra160 SCSI require active termination.
AIP
Asynchronous Information Protection (AIP) provides error checking for
asynchronous, nondata phases of the SCSI bus.
BIOS
Basic Input/Output System. Software that provides basic read/write
capability. Usually kept as firmware (ROM based). The system BIOS on
the mainboard of a computer is used to boot and control the system. The
SCSI BIOS on your host adapter acts as an extension of the system
BIOS.
Configuration
Refers to the way a computer is setup; the combined hardware
components (computer, monitor, keyboard, and peripheral devices) that
make up a computer system; or the software settings that allow the
hardware components to communicate with each other.
CRC
Cyclic Redundancy Check (CRC) is an error detection code used in
Ultra160 SCSI. Four bytes are transferred with the data to increase the
reliability of data transfers. CRC is used on the Double Transition (DT)
Data-In and DT Data-Out phases.
DMA Bus
Master
A feature that allows a peripheral to control the flow of data to and from
system memory by blocks, as opposed to PIO (Programmed I/O) where
the processor is in control and the flow is by byte.
Device Driver
A program that allows a microprocessor (through the operating system)
to direct the operation of a peripheral device.
Differential SCSI
A hardware configuration for connecting SCSI devices. It uses a pair of
lines for each signal transfer (as opposed to Single-Ended SCSI which
references each SCSI signal to a common ground).
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