- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385894 > SYM53C876 (LSI Corporation) PCI-Dual Channel SCSI Multi-Function Controller(PCI 雙通道SCSI多功能控制器) PDF資料下載
參數(shù)資料
| 型號(hào)： | SYM53C876 |
| 廠商： | LSI Corporation |
| 英文描述： | PCI-Dual Channel SCSI Multi-Function Controller(PCI 雙通道SCSI多功能控制器) |
| 中文描述： | 的PCI -雙通道SCSI多功能控制器（雙通道的PCI的SCSI多功能控制器） |
| 文件頁(yè)數(shù)： | 41/285頁(yè) |
| 文件大?。?/td> | 3341K |
| 代理商： | SYM53C876 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)當(dāng)前第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)第158頁(yè)第159頁(yè)第160頁(yè)第161頁(yè)第162頁(yè)第163頁(yè)第164頁(yè)第165頁(yè)第166頁(yè)第167頁(yè)第168頁(yè)第169頁(yè)第170頁(yè)第171頁(yè)第172頁(yè)第173頁(yè)第174頁(yè)第175頁(yè)第176頁(yè)第177頁(yè)第178頁(yè)第179頁(yè)第180頁(yè)第181頁(yè)第182頁(yè)第183頁(yè)第184頁(yè)第185頁(yè)第186頁(yè)第187頁(yè)第188頁(yè)第189頁(yè)第190頁(yè)第191頁(yè)第192頁(yè)第193頁(yè)第194頁(yè)第195頁(yè)第196頁(yè)第197頁(yè)第198頁(yè)第199頁(yè)第200頁(yè)第201頁(yè)第202頁(yè)第203頁(yè)第204頁(yè)第205頁(yè)第206頁(yè)第207頁(yè)第208頁(yè)第209頁(yè)第210頁(yè)第211頁(yè)第212頁(yè)第213頁(yè)第214頁(yè)第215頁(yè)第216頁(yè)第217頁(yè)第218頁(yè)第219頁(yè)第220頁(yè)第221頁(yè)第222頁(yè)第223頁(yè)第224頁(yè)第225頁(yè)第226頁(yè)第227頁(yè)第228頁(yè)第229頁(yè)第230頁(yè)第231頁(yè)第232頁(yè)第233頁(yè)第234頁(yè)第235頁(yè)第236頁(yè)第237頁(yè)第238頁(yè)第239頁(yè)第240頁(yè)第241頁(yè)第242頁(yè)第243頁(yè)第244頁(yè)第245頁(yè)第246頁(yè)第247頁(yè)第248頁(yè)第249頁(yè)第250頁(yè)第251頁(yè)第252頁(yè)第253頁(yè)第254頁(yè)第255頁(yè)第256頁(yè)第257頁(yè)第258頁(yè)第259頁(yè)第260頁(yè)第261頁(yè)第262頁(yè)第263頁(yè)第264頁(yè)第265頁(yè)第266頁(yè)第267頁(yè)第268頁(yè)第269頁(yè)第270頁(yè)第271頁(yè)第272頁(yè)第273頁(yè)第274頁(yè)第275頁(yè)第276頁(yè)第277頁(yè)第278頁(yè)第279頁(yè)第280頁(yè)第281頁(yè)第282頁(yè)第283頁(yè)第284頁(yè)第285頁(yè)
SYM53C876/876E Data Manual
2-7
Functional Description
PCI Functional Description
burst size after alignment and issues bursts of
this size. The burst size is, in effect, throttled
down toward the end of a long Memory Move
or Block Move transfer until only the cache
line size burst size is left. The chip finishes the
transfer with this burst size.
Latency
In accordance with the PCI specification, the
chip's latency timer is ignored when issuing a
Write and Invalidate command such that
when a latency time-out occurs, the
SYM53C876 continues to transfer up to a
cache line boundary. At that point, the chip
relinquishes the bus and finishes the transfer
at a later time using another bus ownership. If
the chip is transferring multiple cache lines, it
continues to transfer until the next cache
boundary is reached.
PCI Target Retry
During a Write and Invalidate transfer, if the
target device issues a retry (STOP with no
TRDY, indicating that no data was trans-
ferred), the chip relinquishes the bus and
immediately tries to finish the transfer on
another bus ownership. The chip issues
another Write and Invalidate command on the
next ownership, in accordance with the PCI
specification.
PCI Target Disconnect
During a Write and Invalidate transfer, if the
target device issues a disconnect the
SYM53C876 relinquishes the bus and imme-
diately tries to finish the transfer on another
bus ownership. The chip does not issue
another Write and Invalidate command on the
next ownership unless the address is aligned.
Internal Arbiter
The PCI-SCSI controller uses a single REQ/ -
GNT/ signal pair to arbitrate for access to the
PCI bus. The SYM53C876 uses a round-
robin arbitration scheme to allow both SCSI
functions to arbitrate for PCI bus access.
An internal arbiter circuit allows the different
bus-mastering functions resident in the chip
of arbitrating for PCI bus access. There are
two independent bus-mastering functions
inside the SYM53C876, one for each of the
SCSI functions.
PCI Cache Mode
The SYM53C876 supports the PCI specifica-
tion for an 8-bit Cache Line Size register
located in the PCI Configuration Space. The
Cache Line Size register provides the ability to
sense and react to non-aligned addresses cor-
responding to cache line boundaries. In con-
junction with the Cache Line Size register, the
PCI commands Read Line, Read Multiple,
and Write and Invalidate are each software
enabled or disabled to allow the user full flexi-
bility in using these commands.
Selection of Cache Line Size
The cache logic for each bus mastering func-
tion selects a cache line size based on the val-
ues for the burst size in the DMODE register,
and the PCI Cache Line Size register, which-
ever is appropriate.
Note: Each bus mastering function does not
automatically use the value in its PCI
Cache Line Size register as the cache
line size value. The chip scales the
value of the Cache Line Size register
down to the nearest binary burst size
allowed by the chip (2, 4, 8, 16, 32,
64, or 128). The SCSI function
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SYM53C895A | PCI to Ultra2 SCSI Controller(PCI與Ultra2 SCSI連接控制器) |
| SYM53C895 | PCI to Ultra2 SCSI I/O Processor with LVD（Low Voltage Differential Link）Universal Transceivers(PCI與Ultra2 SCSI I/O接口處理器（帶低電壓差分連接通用收發(fā)器）) |
| SYM53C896 | PCI to Dual Channel Ultra2 SCSI Multifunction Controller(PCI與雙通道Ultra2 SCSI連接多功能控制器) |
| SYMFC909 | Fibre Channel Protocol Controller(光纖通道協(xié)議控制器) |
| T-13811 | T1/CEPT Telecom Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SYM53C896 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BUS CONTROLLER |
| SYM-63LH+ | 制造商:MINI 制造商全稱:Mini-Circuits 功能描述:Frequency Mixer |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。