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參數(shù)資料
| 型號： | SYM53C140 |
| 廠商： | LSI CORP |
| 元件分類： | 其它接口 |
| 英文描述： | Ultra2 SCSI Bus Expander(Ultra2 SCSI總線擴展器) |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, PQFP160 |
| 封裝： | 32 MM, PLASTIC, QFP-160 |
| 文件頁數(shù)： | 59/68頁 |
| 文件大?。?/td> | 928K |
| 代理商： | SYM53C140 |
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B-5
Priority
The ranking of the devices on the bus during arbitration.
Protocol
A convention for data transmission that encompasses timing control,
formatting, and data representation.
Receiver
The circuitry that receives electrical signals on a line.
Reconnect
The function that occurs when a target reselects an initiator to continue an
operation after a disconnect.
Release
The act of allowing the cable terminators to bias the signal to the false
state (by placing the driver in the high impedance condition).
REQ/
Request – Driven by a target, indicates a request for a SCSI data-transfer
handshake. This signal is received by the initiator.
Reselect
A target can disconnect from an initiator in order to perform a time-
consuming function, such as a disk seek. After performing the operation,
the target can “reselect” the initiator.
RESET
Reset – Clears all internal registers when active. It does not assert the
SCSI RST/ signal and therefore does not reset the SCSI bus.
RST
Reset – Indicates a SCSI Bus reset condition.
SCSI Address
The octal representation of the unique address ([7:0]) assigned to an
SCSI device. This address is normally assigned and set in the SCSI
device during system installation.
SCSI ID
(Identification)
or SCSI Device
ID
The bit-significant representation of the SCSI address referring to one of
the signal lines DB7/ through DB0/.
SCSI
Small Computer System Interface.
SCAM
An acronym for SCSI Configured AutoMatically. SCAM is the new SCSI
automatic ID assignment protocol. SCAM frees SCSI users from locating
and setting SCSI ID switches and jumpers. SCAM is the key part of Plug
and Play SCSI.
SEL/
Select – Used by an initiator to select a target, or by a target to reselect an
initiator.
Single-ended
configuration
An electrical signal configuration that uses a single line for each signal,
referenced to a ground path common to the other signal lines. The
advantage of a single-ended configuration is that it uses half the pins,
chips, and board area that differential/low-voltage differential
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PDF描述 |
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| SYM53C710 | 32-Bit SCSI I/O Processor(32位SCSI I/O處理器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| SYM53C141 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Interface IC |
| SYM53C400A | 制造商:SYMBIOS 功能描述: |
| SYM53C770 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SCSI Bus Interface/Controller |
| SYM53C876E(PBGA) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SCSI Bus Interface/Controller |
| SYM53C876E(PQFP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SCSI Bus Interface/Controller |
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