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データシートサーチシステム |
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データシートサーチシステム |
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TAS5708 データシート(PDF) 25 Page - Texas Instruments |
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TAS5708 データシート(HTML) 25 Page - Texas Instruments |
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25 / 56 page  Single-Byte Read A6 A5 A0 R/W ACK A7 A6 A5 A4 A0 ACK A6 A5 A0 ACK Start Condition Stop Condition Acknowledge Acknowledge Acknowledge I CDevice Addressand 2 Read/WriteBit Subaddress DataByte D7 D6 D1 D0 ACK I CDevice Addressand Read/WriteBit 2 Not Acknowledge R/W A1 A1 RepeatStart Condition T0036-03 Multiple-Byte Read A6 A0 ACK Acknowledge I CDevice Addressand Read/WriteBit 2 R/W A6 A0 R/W ACK A0 ACK D7 D0 ACK Start Condition Stop Condition Acknowledge Acknowledge Acknowledge LastDataByte ACK FirstDataByte RepeatStart Condition Not Acknowledge I CDevice Addressand Read/WriteBit 2 Subaddress OtherDataBytes A7 A6 A5 D7 D0 ACK Acknowledge D7 D0 T0036-04 TAS5708 www.ti.com ........................................................................................................................................................................................... SLOS570 – DECEMBER 2008 As shown in Figure 30, a single-byte data read transfer begins with the master device transmitting a start condition followed by the I2C device address and the read/write bit. For the data read transfer, both a write followed by a read are actually done. Initially, a write is done to transfer the address byte or bytes of the internal memory address to be read. As a result, the read/write bit becomes a 0. After receiving the TAS5708 address and the read/write bit, TAS5708 responds with an acknowledge bit. In addition, after sending the internal memory address byte or bytes, the master device transmits another start condition followed by the TAS5708 address and the read/write bit again. This time the read/write bit becomes a 1, indicating a read transfer. After receiving the address and the read/write bit, the TAS5708 again responds with an acknowledge bit. Next, the TAS5708 transmits the data byte from the memory address being read. After receiving the data byte, the master device transmits a not acknowledge followed by a stop condition to complete the single byte data read transfer. Figure 30. Single-Byte Read Transfer A multiple-byte data read transfer is identical to a single-byte data read transfer except that multiple data bytes are transmitted by the TAS5708 to the master device as shown in Figure 31. Except for the last data byte, the master device responds with an acknowledge bit after receiving each data byte. Figure 31. Multiple Byte Read Transfer Copyright © 2008, Texas Instruments Incorporated Submit Documentation Feedback 25 Product Folder Link(s): TAS5708 |
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