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数据搜索系统，热门电子元器件搜索 |
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L9963E 数据表(PDF) 28 Page - STMicroelectronics |
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L9963E 数据表(HTML) 28 Page - STMicroelectronics |
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28 / 184 page  Figure 13. Single read access Frame fields are described in the table below: Table 20. Single access frames field description Field Length Value Description P.A. 1 bit 0 Answer sent by any Slave unit (MISO) 1 Command sent by Master unit (MOSI) R/W 1 bit 0 Read 1 Write Dev ID 5 bit From 0x1 to 0x1F Identifies the x-th L9963E unit in a daisy chain Address 7 bit From 0x00 to 0x5F Identifies the y-th register of the device Address feedback GSW 2 bit From 0x0 to 0x3 Refer to Section 4.2.4.5 Global Status Word (GSW) DATA WRITE 18 bit Depends on the register Data to be written in the y-th register of the x-th device. It is discarded in case of READ command. CRC 6 bit From 0x00 to 0x3F CRC calculated on the [39-7] field of the frame. Refer to Section 4.2.4.6 CRC calculation Burst 1 bit 0 Answer to a single access command DATA READ 18 bit Depends on the register Answer containing the data read from the y-th register of the y-th device L9963E Serial communication interface DS13636 - Rev 12 page 28/184 |
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