STA308A STMicroelectronics, STA308A Datasheet - Page 54

• Manufacturer Part Number: STA308A
• Description: IC AUDIO PROCESSOR DGTL 64-TQFP
• Manufacturer: STMicroelectronics
• Series: DDX™r
• Type: Audio Processorr

Specifications of STA308A

• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Lead Free Status / Rohs Status: Compliant

Registers
7.2.78
7.3
7.4
54/63
Coefficient write control register (0x4C)
Coefficients for EQ and Bass Management are handled internally in the STA308A via RAM.
Access to this RAM is available to the user via an I
A collection of I
address, five sets of three store the values of the 24-bit coefficients to be written or that were
read, and one contains bits used to control the write of the coefficient(s) to RAM. The
following are instructions for reading and writing coefficients.
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
D7
write top 2-bits of address to I
write bottom 8-bits of address to 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 top 2-bits of address to I
write bottom 8-bits of address to 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
2
D6
C registers are dedicated to this function. One contains a coefficient base
D5
2
2
C register 0x3B
C register 0x3B
2
2
C address 0x3D
C address 0x3D
2
2
D4
C register 0x3C
C register 0x3C
2
2
2
2
2
2
2
2
C address 0x40
C address 0x43
C address 0x46
C address 0x49
C address 0x3E
C address 0x3E
C address 0x3F
C address 0x3F
2
2
2
2
2
2
2
2
C address 0x41
C address 0x44
C address 0x47
C address 0x4A
C address 0x42
C address 0x45
C address 0x48
C address 0x4B
D3
2
C register interface.
D2
WA
0
D1
W1
0
STA308A
D0