參數(shù)資料
型號(hào)： AL251
廠商： Electronic Theatre Controls, Inc.
英文描述： Video Scan Doubler
中文描述： 視頻掃描倍增器
文件頁(yè)數(shù)： 18/33頁(yè)
文件大小： 595K
代理商： AL251
AL250
July 28, 1999
18
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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 58h, the timing is as
follows:
Start
Slave addr = 58h
Ack
Index = 0Fh
Suppose data is to be read from register 55h using read slave address 59h, the timing is as follows:
Start
Slave addr = 58h
Ack
Index = 55h
6.9 Video Decoding
A video decoder (video input processor) is needed with the AL250/251 for S-video or composite
video processing. Please note that the AL250/251 works only with line-locked video decoders.
There are a number of video decoders available in the market; following is a selection chart. For
detailed information, please consult with the decoder vendors or their distributors directly. The
attached information is believed to be accurate but not guaranteed.
Ack
Ack
Stop
Data = F0h
SDA
SCL
AL250-24 I2C Write timing
Ack
Ack
Read slave addr = 59h
Start
SDA
SCL
AL250-25 I2C Read timing
NAck
Stop
Data read cycle
Stop
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參數(shù)描述
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