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STA321MPL1 数据表(PDF) 52 Page - STMicroelectronics |
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STA321MPL1 数据表(HTML) 52 Page - STMicroelectronics |
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52 / 80 page  Registers STA321MPL1 52/80 DocID029389 Rev 1 5.3 Reading a coefficient from RAM 1. Write the top 2 bits of address to I2C register 0x3B 2. Write the bottom 8 bits of address to I2C register 0x3C 3. Read the top 8 bits of coefficient in I2C address 0x3D 4. Read the middle 8 bits of coefficient in I2C address 0x3E 5. Read the bottom 8 bits of coefficient in I2C address 0x3F 5.4 Reading a set of coefficients from RAM 1. Write the top 2 bits of address to I2C register 0x3B 2. Write the bottom 8 bits of address to I2C register 0x3C 3. Read the top 8 bits of coefficient in I2C address 0x3D 4. Read the middle 8 bits of coefficient in I2C address 0x3E 5. Read the bottom 8 bits of coefficient in I2C address 0x3F 6. Read the top 8 bits of coefficient b2 in I2C address 0x40 7. Read the middle 8 bits of coefficient b2 in I2C address 0x41 8. Read the bottom 8 bits of coefficient b2 in I2C address 0x42 9. Read the top 8 bits of coefficient a1 in I2C address 0x43 10. Read the middle 8 bits of coefficient a1 in I2C address 0x44 11. Read the bottom 8 bits of coefficient a1 in I2C address 0x45 12. Read the top 8 bits of coefficient a2 in I2C address 0x46 13. Read the middle 8 bits of coefficient a2 in I2C address 0x47 14. Read the bottom 8 bits of coefficient a2 in I2C address 0x48 15. Read the top 8 bits of coefficient b0 in I2C address 0x49 16. Read the middle 8 bits of coefficient b0 in I2C address 0x4A 17. Read the bottom 8 bits of coefficient b0 in I2C address 0x4B 5.5 Writing a single coefficient to RAM 1. Write the top 2 bits of address to I2C register 0x3B 2. Write the bottom 8 bits of address to I2C register 0x3C 3. Write the top 8 bits of coefficient in I2C address 0x3D 4. Write the middle 8 bits of coefficient in I2C address 0x3E 5. Write the bottom 8 bits of coefficient in I2C address 0x3F 6. Write 1 to the W1 bit in I2C address 0x4C |
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