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參數(shù)資料
| 型號： | AL440B-12 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; No. of Contacts:56; Series:MS27497; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Pin; Circular Shell Style:Wall Mount Receptacle; Insert Arrangement:24-4 RoHS Compliant: No |
| 中文描述： | 4Mbits（為512k × 8位）FIFO存儲器 |
| 文件頁數(shù)： | 10/33頁 |
| 文件大?。?/td> | 672K |
| 代理商： | AL440B-12 |
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AL440B
AL440B
November 28, 2001
10
Read
: <S> <Write SA> <A> <Register Index> <A> <S> <Read SA> <A> <Data> <NA> <P>
Following are the details:
<
S
>:
Start signal
SCL
High
High
The Start signal is HIGH to LOW transition on the SDA line when SCL is HIGH.
<
WRITE SA
>:
Write Slave Address: 0h
<
READ SA
>:
Read Slave Address: 1h
<
REGISTER INDEX
>:
Value of the AL440B register index.
<
A
>:
Acknowledge stage
The acknowledge-related clock pulse is generated by the host (master). The host releases the SDA
line (HIGH) for the AL440B (slave) to pull down the SDA line during the acknowledge clock
pulse.
<
NA
>:
Not Acknowledged stage
The acknowledge-related clock pulse is generated by the host (master). The host releases the SDA
line (HIGH) during the acknowledge clock pulse, but the AL440B does not pull it down during
this stage.
SDA
High
Low
<
DATA
>:
Data byte write to or read from the register index.
In read operation, the host must release the SDA line (high) before the first clock pulse is
transmitted to the AL440B.
<
P
>:
Stop signal
SCL
SDA
High
Low
High
High
The Stop signal is LOW to HIGH transition on the SDA line when SCL is HIGH.
Suppose data F0h is to be written to register 0Fh using write slave address 0h, the timing is as
follows:
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|---|---|
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