參數(shù)資料
型號(hào): VS6524Q06J
廠商: 意法半導(dǎo)體
英文描述: VGA single-chip camera module
中文描述: 顯卡單芯片相機(jī)模塊
文件頁數(shù): 38/70頁
文件大小: 505K
代理商: VS6524Q06J
Host communication - I2C control interface
VL6524/VS6524
38/70
Current location, single data read
For the master reading from the slave the R/W bit is set to one. The register index of the
data returned is that accessed by the previous read or write message.
The first data byte returned by a read message is the contents of the internal index value
and NOT the index value. This was the case in older V2W implementations.
Note that the read message is terminated with a negative acknowledge (A) from the master:
it is not guaranteed that the master will be able to issue a stop condition at any other time
during a read message. This is because if the data sent by the slave is all zeros, the SDA
line cannot rise, which is part of the stop condition.
Figure 26.
16-bit index, 8-bit data current location, single data read
Current location, single read
DATA
DATA[7:0]
DATA[7:0]
S
DEV ADDR R/W A
‘1’ (Read)
P
A
From Master to Slave
From Slave to Master
S = START Condition
Sr = repeated START
P = STOP Condition
A = Acknowledge
A = Negative Acknowledge
Previous Index Value, K
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