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VD5377CBSW 数据表(PDF) 66 Page - STMicroelectronics |
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VD5377CBSW 数据表(HTML) 66 Page - STMicroelectronics |
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66 / 88 page ![]() I2C interface VD5377 66/88 Doc ID 022952 Rev 2 Figure 31. Single read As mentioned in the previous example, the read message is terminated with a negative acknowledge (A) from the master. 11.4.3 Multiple location write It is possible to write data bytes to consecutive adjacent internal registers without having to send explicit indexes prior to sending each data byte. Note: An auto-increment write is assumed if no stop condition occurs. Figure 32. Multiple location write 11.4.4 Multiple location read Multiple locations can be read within a single read message. An auto-increment write is assumed. Note: Registers are read until the master NAcks the data. Figure 33. Multiple location read: reading motion Note: When reading X/Y motion data a multiple read must be performed. S A Sr A A A6h 2Ah A7h 16 No data write Read data from the master NAck P A Master Slave SA 11 A AA A6h 07h C1 Incremental write P data written @ index = 08 data written @ index = 07 Master Slave Incremental read SA A A6h 21h Sr X motion Y motion No data write AA P A A7h Master Slave |
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