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參數(shù)資料
| 型號： | TVP6000CPFP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | COLOR SIGNAL ENCODER, PQFP80 |
| 封裝： | POWER, PLASTIC, TQFP-80 |
| 文件頁數(shù)： | 7/57頁 |
| 文件大?。?/td> | 268K |
| 代理商： | TVP6000CPFP |
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2–3
2.2
I2C Interface
The I2C interface is used to access the internal registers of the TVP6000 encoder. This two pin interface
consists of one clock line, SCL, and one serial data line, SDA. The basic I2C access cycles are shown in
Figure 2–3.
Start Condition (S)
Stop Condition (P)
SDA
SCL
Figure 2–2. I2C Start and Stop Conditions
The basic access cycle consists of the following:
1.
A start condition
2.
A slave address cycle
3.
A subaddress cycle
4.
Any number of data cycles
5.
A stop condition
The start and stop conditions are shown in Figure 2–2. The high-to-low transition of SDA while SCL is high,
defines the start condition. The low-to-high transition of SDA while SCL is high, defines the stop condition.
Each cycle, data or address, consists of 8 bits of serial data followed by one acknowledge bit generated by
the receiving device. Thus, each data/address cycle contains nine bits as shown in Figure 2–3.
SCL
SDA
MSB
Slave Address
Subaddress
Data
Stop
1
2
345
6
7
8
9
1
2
34
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Acknowledge
Figure 2–3. I2C Access Cycles
As indicated in Figure 2–3, following a start condition, each I2C device decodes the slave address. The
TVP6000 responds with an acknowledge by pulling the SDA line low during the ninth clock cycle, if it
decodes the address as its address. During subsequent subaddress and data cycles, the TVP6000
responds with an acknowledge as shown in Figure 2–3. The subaddress is auto-incremented after each
data cycle.
The transmitting device must not drive the SDA signal during the acknowledge cycle so that the receiving
device may drive the SDA signal low. The not acknowledge, A, condition is indicated by the master by
keeping the SDA signal high just before it asserts the stop, P, condition. This sequence terminates a read
cycle as shown in Figure 2–5.
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| TVP7000EVM | 功能描述:視頻 IC 開發(fā)工具 TVP7000 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V |
| TVP7000PZP | 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Triple 8/10B 150/110 MSPS Video ADC RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
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