sta381bw STMicroelectronics, sta381bw Datasheet - Page 81

• Manufacturer Part Number: sta381bw
• Description: Sound Terminal 2.1-channel High-efficiency Digital Audio System
• Manufacturer: STMicroelectronics

STA381BW
Reading a coefficient from RAM
1.
2.
3.
4.
5.
Reading a set of coefficients from RAM
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Read middle 8 bits of coefficient a1 in I
11. Read bottom 8 bits of coefficient a1 in I
12. Read top 8 bits of coefficient a2 in I
13. Read middle 8 bits of coefficient a2 in I
14. Read bottom 8 bits of coefficient a2 in I
15. Read top 8 bits of coefficient b0 in I
16. Read middle 8 bits of coefficient b0 in I
17. Read bottom 8 bits of coefficient b0 in I
Writing a single coefficient to RAM
1.
2.
3.
4.
5.
Write 6-bits of address to I
Write 1 to R1 bit in I
Read top 8-bits of coefficient in I
Read middle 8-bits of coefficient in I
Read bottom 8-bits of coefficient in I
Write 6 bits of address to I
Write 1 to RA bit in I
Read top 8 bits of coefficient in I
Read middle 8 bits of coefficient in I
Read bottom 8 bits of coefficient in I
Read top 8 bits of coefficient b2 in I
Read middle 8 bits of coefficient b2 in I
Read bottom 8 bits of coefficient b2 in I
Read top 8 bits of coefficient a1 in I
Write 6 bits of address to I
Write top 8 bits of coefficient in I
Write middle 8 bits of coefficient in I
Write bottom 8 bits of coefficient in I
Write 1 to W1 bit in I
2
2
2
C address 0x37.
C address 0x37.
C address 0x37.
Doc ID 018835 Rev 2
2
2
2
C register 0x27.
C register 0x27.
C register 0x27.
2
2
2
C address 0x28.
C address 0x28.
C address 0x28.
2
2
2
2
2
2
2
2
2
2
C address 0x2B.
C address 0x2E.
C address 0x31.
C address 0x34.
C address 0x29.
C address 0x29.
C address 0x29.
C address 0x2A.
C address 0x2A.
C address 0x2A.
2
2
2
2
2
2
2
2
C address 0x2C.
C address 0x2F.
C address 0x32.
C address 0x35.
C address 0x2D.
C address 0x30.
C address 0x33.
C address 0x36.
Register description: New Map
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