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STA323W Datasheet(PDF) 67 Page - STMicroelectronics

Part # STA323W
Description  2.1-channel high-efficiency digital audio system
PDF  77 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA323W Datasheet(HTML) 67 Page - STMicroelectronics

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STA323W
User-programmable settings
67/77
8.6.13
Coefficient a2 data register bits 7:0 (address 0x22)
8.6.14
Coefficient b0 data register bits 23:16 (address 0x23)
8.6.15
Coefficient b0 data register bits 15:8 (address 0x24)
8.6.16
Coefficient b0 data register bits 7:0 (address 0x25)
8.6.17
Coefficient write control register (address 0x26)
Coefficients for EQ, Mix and Scaling are handled internally in the STA323W via RAM.
Access to this RAM is available to the user via an I2C register interface. A collection of I2C
registers are dedicated to this function. The first register contains base address of the
coefficient: five sets of three registers store the values of the 24-bit coefficients to be written
or that were read, and one contains bits used to control the reading or writing of the
coefficients to RAM. The following are instructions for reading and writing coefficients.
D7
D6
D5
D4
D3
D2
D1
D0
C4B7
C4B6
C4B5
C4B4
C4B3
C4B2
C4B1
C4B0
00
00
000
0
D7
D6
D5
D4
D3
D2
D1
D0
C5B23
C5B22
C5B21
C5B20
C5B19
C5B18
C5B17
C5B16
0
00000
00
D7
D6
D5
D4
D3
D2
D1
D0
C5B15
C5B14
C5B13
C5B12
C5B11
C5B10
C5B9
C5B8
000
00000
D7
D6
D5
D4
D3
D2
D1
D0
C5B7
C5B6
C5B5
C5B4
C5B3
C5B2
C5B1
C5B0
00
00
000
0
D7
D6
D5
D4
D3
D2
D1
D0
Reserved
Reserved
Reserved
Reserved
RA
R1
WA
W1
00
00
000
0



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