參數(shù)資料
型號(hào): GL811USB
廠商: Electronic Theatre Controls, Inc.
英文描述: USB 2.0 to ATA / ATAPI Bridge Controller
中文描述: USB 2.0至的ATA / ATAPI控制器橋
文件頁數(shù): 15/36頁
文件大?。?/td> 291K
代理商: GL811USB
GL811USB – USB 2.0 to ATA / ATAPI Bridge Controller
2000-2002 Genesys Logic Inc.—All rights reserved.
Page 14
All signals are shown with the asserted condition facing to the top of the page. The
negated condition is shown towards the bottom of the page relative to the asserted
condition.
The interface uses a mixture of negative and positive signals for control and data. The
terms asserted and negated are used for consistency and are independent of
electrical characteristics.
In all timing diagrams, the lower line indicates negated, and the upper line indicates
asserted. The following illustrates the representation of a signal named Test going
from negated to asserted and back to negated, based on the polarity of the signal.
-
Signal transition (asserted or negated)
-
Data transition (asserted or negated)
-
Data valid
-
Undefined but not necessarily released
-
Asserted, negated or released
-
Released
-
The “other” condition if a signal is shown with no change
Assert
Assert
Negate
Negate
Test
Test_
> V
IH
< V
IL
< V
IL
> V
IH
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