- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄366548 > Am7969-175LKC (Advanced Micro Devices, Inc.) TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) PDF資料下載
參數(shù)資料
| 型號(hào)： | Am7969-175LKC |
| 廠商： | Advanced Micro Devices, Inc. |
| 英文描述： | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| 中文描述： | TAXIchip集成電路（透明異步Xmitter，接收器接口） |
| 文件頁(yè)數(shù)： | 105/127頁(yè) |
| 文件大?。?/td> | 730K |
| 代理商： | AM7969-175LKC |
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)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)當(dāng)前第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)
AMD
101
TAXIchip Integrated Circuits Technical Manual
TAXI T
echnical
I
nformation
P
ublication
#89-07
S ubjec t: S ync hronous vs. Async hronous S trobe
Question:
When should synchronous vs. asynchronous strobing be employed
Answer:
Inputs to the TAXI Transmitter can be strobed asynchronously, but with some limita-
tions. In localmode, the STROBE edge can rise at any time, without regard for place-
ment within any particular byte. The data associated with the STROBE (STRB) will be
latched into the Transmitter, and will be transmitted at the earliest opportunity. If some
system limitation insures that a second STRB cannot ever be within the same byte time
(80.0 ns at 125 MHz), then there is no need to observe the ACK output of the TAXI
Transmitter.
If no such guarantee exists, then ACK must be used to insure that no more than two
STRBS lie within a single byte. Again there is no restriction on STROBE placement
within a byte, since ACK will always insure that the capacity of the TAXI input buffer is
not exceeded. The TAXI input buffering can handle two STRBS within a single byte, but
this additional buffer must be flushedby the absence of a STRB in a given byte before
another two-strobe byte is encountered.
In an early revision of the 70 MHz Transmitter, there was a particular placement of
STROBE with respect to the falling edge of CLK, that could cause loss of data. This lead
to several revisions of technical literature mentioning the ProhibitedZone and Uncer-
tainty Zone This restriction in STROBE placement has been removed in the 125 MHz
version of the Transmitter. T6 in the data sheet, now refers only to the exact placement
of the internal byte boundary. Knowledge of this time is only important for synchronous
systems to predict in which byte the data will appear.
The only restriction on Local mode asynchronous STRB input would be in systems
which require contiguous data output from the TAXI Receiver. It is possible that when
strobing asynchronously, there will be an occasional byte with no strobe, and another
nearby byte with two strobes. The Transmitter has sufficient buffering to handle this
condition, but will pad the missing byte with a Sync character. For systems that have this
restriction, STRB should be made synchronous with the CLK of Transmitter.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AM7968-125VB3A | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| AM7969-125VB3A | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| AM7968-175JC | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| AM7969-175JC | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| AM7968-125DC | TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AM7969-175LMC | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface) |
| AM7969-175PC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver |
| AM7969-175PCB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver |
| AM7969-70/B3A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver |
| AM7969-70/BXA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。