- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385894 > SYM53C141 (LSI CORP) SCSI Bus Expander(SCSI總線擴(kuò)展器) PDF資料下載
參數(shù)資料
| 型號： | SYM53C141 |
| 廠商： | LSI CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SCSI Bus Expander(SCSI總線擴(kuò)展器) |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP128 |
| 封裝： | PLASTIC, QFP-128 |
| 文件頁數(shù)： | 29/68頁 |
| 文件大小： | 630K |
| 代理商： | SYM53C141 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁當(dāng)前第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁
SCSI Termination
2-11
currently in progress are not disrupted by the assertion or deassertion of
the WS_ENABLE pin.
Assertion or deassertion of the WS_ENABLE pin may not be effective
immediately since it may take several milliseconds for a bus free state to
be detected and then indicated by a change in state of the
XFER_ACTIVE output signal.
2.8 SCSI Termination
The terminator networks provide the biasing needed to pull signals to an
inactive voltage level, and to match the impedance seen at the end of
the cable with the characteristic impedance of the cable. Terminators
must be installed at the extreme ends of the SCSI chain, and only at the
ends. No system should ever have more or less than two terminators
installed and active. SCSI host adapters should provide a means of
accommodating terminators. The terminators should be socketed so that,
Table 2.3
WS_ENABLE Signal Polarity
Signal
Level
State
Effect
LOW = 0
Asserted
The SYM53C141 discontinues transfers through
the device (off-line) upon detection of a SCSI bus
free state.
HIGH = 1
Deasserted
The SYM53C141 performs normal transfers
through the device.
Table 2.4
XFER_ACTIVE Signal Polarity
Signal
Level
State
Effect
HIGH = 1 Asserted
Indicates normal operation, transfers through the
SYM53C141 are enabled.
LOW = 0
Deasserted
The SYM53C141 has detected a bus free state due
to WS_ENABLE being LOW, disabling transfers
through the device.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SYM53C180 | Ultra3 SCSI Bus Expander(Ultra2 SCSI總線擴(kuò)展器) |
| SYM53C710 | 32-Bit SCSI I/O Processor(32位SCSI I/O處理器) |
| SYM53C770 | SCSI I/O Processor With Ultra SCSI(帶超級SCSI的SCSI I/O處理器) |
| SYM53C810A | PCI-SCSI I/O Processor(PCI-SCSI I/O接口處理器) |
| SYM53C825A | PCI-SCSI I/O Processor(PCI-SCSI I/O接口處理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SYM53C885 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。