Datasheet

Registers STA309A
58/67 Doc ID 13855 Rev 4
7.3 Reading a coefficient from RAM
1. write top 2-bits of address to I
2
C register 0x3B
2. write bottom 8-bits of address to I
2
C register 0x3C
3. read top 8-bits of coefficient in I
2
C address 0x3D
4. read middle 8-bits of coefficient in I
2
C address 0x3E
5. read bottom 8-bits of coefficient in I
2
C address 0x3F
7.4 Reading a set of coefficients from RAM
1. write top 2-bits of address to I
2
C register 0x3B
2. write bottom 8-bits of address to I
2
C register 0x3C
3. read top 8-bits of coefficient in I
2
C address 0x3D
4. read middle 8-bits of coefficient in I
2
C address 0x3E
5. read bottom 8-bits of coefficient in I
2
C address 0x3F
6. read top 8-bits of coefficient b2 in I
2
C address 0x40
7. read middle 8-bits of coefficient b2 in I
2
C address 0x41
8. read bottom 8-bits of coefficient b2 in I
2
C address 0x42
9. read top 8-bits of coefficient a1 in I
2
C address 0x43
10. read middle 8-bits of coefficient a1 in I
2
C address 0x44
11. read bottom 8-bits of coefficient a1 in I
2
C address 0x45
12. read top 8-bits of coefficient a2 in I
2
C address 0x46
13. read middle 8-bits of coefficient a2 in I
2
C address 0x47
14. read bottom 8-bits of coefficient a2 in I
2
C address 0x48
15. read top 8-bits of coefficient b0 in I
2
C address 0x49
16. read middle 8-bits of coefficient b0 in I
2
C address 0x4A
17. read bottom 8-bits of coefficient b0 in I
2
C address 0x4B
7.5 Writing a single coefficient to RAM
1. write top 2-bits of address to I
2
C register 0x3B
2. write bottom 8-bits of address to I
2
C register 0x3C
3. write top 8-bits of coefficient in I
2
C address 0x3D
4. write middle 8-bits of coefficient in I
2
C address 0x3E
5. write bottom 8-bits of coefficient in I
2
C address 0x3F
6. write 1 to W1 bit in I
2
C address 0x4C