STA559BWQS13TR STMICROELECTRONICS [STMicroelectronics], STA559BWQS13TR Datasheet - Page 54

• Manufacturer Part Number: STA559BWQS13TR
• Description: 5-V, 2-A, 2.1-channel high-efficiency digital audio system with QSound QHD
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Register description
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Coefficient write/read control register
Coefficients for user-defined EQ, mixing, scaling, and bass management are handled
internally in the STA559BWQS via RAM. Access to this RAM is available to the user via an
I
contains a coefficient base 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/read of the coefficient(s) to/from RAM. The following are instructions for reading and
writing coefficients.
Reading a coefficient from RAM
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Reading a set of coefficients from RAM
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2
C register interface. A collection of I²C registers are dedicated to this function. One
D7
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
read middle 8-bits of coefficient a1 in I
read bottom 8-bits of coefficient a1 in I
read top 8-bits of coefficient a2 in I
read middle 8-bits of coefficient a2 in I
read bottom 8-bits of coefficient a2 in I
read top 8-bits of coefficient b0 in I
read middle 8-bits of coefficient b0 in I
read bottom 8-bits of coefficient b0 in I
D6
2
2
C address 0x26
C address 0x26
D5
2
2
C register 0x16
C register 0x16
2
2
C address 0x17
C address 0x17
D4
2
2
2
2
2
2
2
2
C address 0x1A
C address 0x1D
C address 0x20
C address 0x23
C address 0x18
C address 0x18
C address 0x19.
C address 0x19
2
2
2
2
2
2
2
2
C address 0x1B
C address 0x1E
C address 0x21
C address 0x24
C address 0x1C
C address 0x1F
C address 0x22
C address 0x25.
RA
D3
0
D2
R1
0
WA
D1
0
STA559BWQS
W1
D0
0