参数资料
型号: TVP5150AM1IPBSRQ1
厂商: TEXAS INSTRUMENTS INC
元件分类: 颜色信号转换
英文描述: COLOR SIGNAL DECODER, PQFP32
封装: PLASTIC, TQFP-32
文件页数: 13/88页
文件大小: 997K
代理商: TVP5150AM1IPBSRQ1
SLES209D – NOVEMBER 2007 – REVISED SEPTEMBER 2010
www.ti.com
3.15.1 I
2C Write Operation
Data transfers occur utilizing the following illustrated formats.
An I2C master initiates a write operation to the TVP5150AM1 decoder by generating a start condition (S)
followed by the TVP5150AM1 I2C slave address (see the following illustration), in MSB first bit order,
followed by a 0 to indicate a write cycle. After receiving an acknowledge from the TVP5150AM1 decoder,
the master presents the subaddress of the register, or the first of a block of registers it wants to write,
followed by one or more bytes of data, MSB first. The TVP5150AM1 decoder acknowledges each byte
after completion of each transfer. The I2C master terminates the write operation by generating a stop
condition (P).
Step 1
0
I2C Start (master)
S
Step 2
7
6
5
4
3
2
1
0
I2C slave 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 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
9
Step 7(1)
I2C Acknowledge (slave)
A
Step 8
0
I2C Stop (master)
P
(1)
Repeat steps 6 and 7 until all data have been written.
3.15.2 I
2C 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 TVP5150AM1 decoder by generating a start condition (S) followed
by the TVP5150AM1 I2C slave address, in MSB first bit order, followed by a 0 to indicate a write cycle.
After receiving an acknowledge from the TVP5150AM1 decoder, 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 3-7. Read Address
Selection
I2CSEL
READ ADDRESS
0
B9h
1
BBh
20
Functional Description
Copyright 2007–2010, Texas Instruments Incorporated
Product Folder Link(s): TVP5150AM1
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