データシートサーチシステム |
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STA323W データシート(PDF) 10 Page - STMicroelectronics |
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STA323W データシート(HTML) 10 Page - STMicroelectronics |
10 / 41 page STA323W 10/41 6.4.1.1Current Address Multi-byte Read The multi-byte read modes can start from any internal address. Sequential data bytes will be read from sequential addresses within the STA323W. The master acknowledges each data byte read and then gen- erates a STOP condition terminating the transfer. 6.4.2 Random Address Byte Read Following the START condition the master sends a device select code with the RW bit set to 0. The STA323W acknowledges this and then the master writes the internal address byte. After receiving, the internal byte address the STA323W again responds with an acknowledgement. The master then initiates another START condition and sends the device select code with the RW bit set to 1. The STA323W ac- knowledges this and then responds by sending one byte of data. The master then terminates the transfer by generating a STOP condition. 6.4.2.1Random Address Multi-byte Read The multi-byte read modes could start from any internal address. Sequential data bytes will be read from sequential addresses within the STA323W. The master acknowledges each data byte read and then gen- erates a STOP condition terminating the transfer. 6.5 Write Mode Sequence Figure 10. I2C Write Procedure 6.6 Read Mode Sequence Figure 11. I2C Read Procedure DEV-ADDR ACK START RW SUB-ADDR ACK DATA IN ACK STOP BYTE WRITE DEV-ADDR ACK START RW SUB-ADDR ACK DATA IN ACK STOP MULTIBYTE WRITE DATA IN ACK DEV-ADDR ACK START RW DATA NO ACK STOP CURRENT ADDRESS READ DEV-ADDR ACK START RW SUB-ADDR ACK DEV-ADDR ACK STOP RANDOM ADDRESS READ DATA NO ACK START RW DEV-ADDR ACK START DATA ACK DATA ACK STOP SEQUENTIAL CURRENT READ DATA NO ACK DEV-ADDR ACK START RW SUB-ADDR ACK DEV-ADDR ACK SEQUENTIAL RANDOM READ DATA ACK START RW DATA ACK NO ACK STOP DATA RW= HIGH |
同様の部品番号 - STA323W |
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同様の説明 - STA323W |
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