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參數資料
| 型號： | TMDS261PAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁數： | 26/43頁 |
| 文件大小： | 2160K |
| 代理商： | TMDS261PAG |
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SDA
SCL
DataLine
Stable;
DataValid
ChangeofData Allowed
T0394-01
DataOutput
by Transmitter
DataOutput
byReceiver
SCL From
Master
START
Condition
S
1
2
8
9
ClockPulsefor
Acknowledgement
Acknowledge
Not Acknowledge
T0395-01
SCL
SDA
MSB
Slave Address
Acknowledge
Data
Acknowledge
Stop
123456789123456789
T0396-01
SLLS953 – DECEMBER 2008............................................................................................................................................................................................ www.ti.com
transition occurs on the SDA line while SCL is high, as shown in Figure 38. All I2C-compatible devices should
recognize a start condition.
The master then generates the SCL pulses and transmits the 7-bit address and the read/write direction bit
R/W on the SDA line. During all transmissions, the master ensures that data is valid. A valid data condition
requires the SDA line to be stable during the entire high period of the clock pulse (see Figure 39). All devices
recognize the address sent by the master and compare it to their internal fixed addresses. Only the slave
device with a matching address generates an acknowledge (see Figure 40) by pulling the SDA line low during
the entire high period of the ninth SCL cycle. On detecting this acknowledge, the master knows that a
communication link with a slave has been established.
The master generates further SCL cycles to either transmit data to the slave (R/W bit 0) or receive data from
the slave (R/W bit 1). In either case, the receiver must acknowledge the data sent by the transmitter. So an
acknowledge signal can be generated either by the master or by the slave, depending on which one is the
receiver. The 9-bit valid data sequences consisting of 8-bit data and 1-bit acknowledge can continue as long
as necessary (See Figure 42 through Figure 45).
To signal the end of the data transfer, the master generates a stop condition by pulling the SDA line from low
to high while the SCL line is high (see Figure 38). This releases the bus and stops the communication link
with the addressed slave. All I2C compatible devices must recognize the stop condition. Upon the receipt of a
stop condition, all devices know that the bus is released, and they wait for a start condition followed by a
matching address.
Figure 39. I2C Bit Transfer
Figure 40. I2C Acknowledge
Figure 41. I2C Address, Data Cycle(s), and Stop
32
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s) :TMDS261
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相關代理商/技術參數 |
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| TMDS261PAGR | 功能描述:視頻開關 IC 2 to 1 HDMI Switch RoHS:否 制造商:Texas Instruments 開關數量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| TMDS28027USB | 功能描述:仿真器/模擬器 TMX320F28027 Piccolo controlSTICK RoHS:否 制造商:Blackhawk 產品:System Trace Emulators 工具用于評估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2 |
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| TMDS3080005 | 功能描述:EMULATOR CABLE RoHS:是 類別:編程器，開發系統 >> 配件 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標準包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關產品:1-Wire? 設備 產品目錄頁面:1429 (CN2011-ZH PDF) |
| TMDS3200026 | 制造商:Texas Instruments 功能描述:KIT-DSP STARTER PACK |
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