參數(shù)資料
型號: TVP5150PBS
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PQFP32
封裝: PLASTIC, TQFP-32
文件頁數(shù): 19/68頁
文件大?。?/td> 917K
代理商: TVP5150PBS
Functional Description
20
May 2006
SLES043A
Step 4
7
6
5
4
3
2
1
0
I2C Write register address (master)
addr
Step 5
9
I2C Acknowledge (slave)
A
Step 6
7
6
5
4
3
2
1
0
I2C Write data (master)
Data
Step 7
9
I2C Acknowledge (slave)
A
Step 8
0
I2C Stop (master)
P
Repeat steps 6 and 7 until all data have been written.
3.18.2
I2C Read Operation
The read operation consists of two phases. The first phase is the address phase. In this phase, an I2C master
initiates a write operation to the TVP5150 device by generating a start condition (S) followed by the TVP5150
I2C address, in MSB first bit order, followed by a 0 to indicate a write cycle. After receiving acknowledges from
the TVP5150 device, the master presents the subaddress of the register or the first of a block of registers it
wants to read. After the cycle is acknowledged, the master terminates the cycle immediately by generating
a stop condition (P).
Table 37. Read Address Selection
I2CSEL
READ ADDRESS
0
B9h
1
BBh
The second phase is the data phase. In this phase, an I2C master initiates a read operation to the TVP5150
device by generating a start condition followed by the TVP5150 I2C address (as shown below for a read
operation), in MSB first bit order, followed by a 1 to indicate a read cycle. After an acknowledge from the
TVP5150 device, the I2C master receives one or more bytes of data from the TVP5150 device. The I2C master
acknowledges the transfer at the end of each byte. After the last data byte desired has been transferred from
the TVP5150 device to the master, the master generates a not acknowledge followed by a stop.
3.18.2.1 Read Phase 1
Step 1
0
I2C Start (master)
S
Step 2
7
6
5
4
3
2
1
0
I2C General address (master)
1
0
1
0
X
0
Step 3
9
I2C Acknowledge (slave)
A
Step 4
7
6
5
4
3
2
1
0
I2C Read register address (master)
addr
Step 5
9
I2C Acknowledge (slave)
A
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