sta381bw STMicroelectronics, sta381bw Datasheet - Page 80

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

Register description: New Map
6.24.12
6.24.13
6.24.14
6.24.15
6.24.16
6.24.17
Note:
80/168
Coefficient a2 data register bits 15:8
Coefficient a2 data register bits 7:0
Coefficient b0 data register bits 23:16
Coefficient b0 data register bits 15:8
Coefficient b0 data register bits 7:0
Coefficient write/read control register
Coefficients for user-defined EQ, mixing, scaling, and bass management are handled
internally in the STA381BW via RAM. Access to this RAM is available to the user via an I
register interface. A collection of I
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 read and write operation on RAM coefficients works only if LRCKI (pin 29) is switching.
C4B15
C5B23
C5B15
C4B7
C5B7
D7
D7
D7
D7
D7
D7
0
0
0
0
0
C4B14
C5B22
C5B14
C4B6
C5B6
D6
D6
D6
D6
D6
D6
0
0
0
0
0
Reserved
0
C4B13
C5B21
C5B13
C4B5
C5B5
D5
D5
D5
D5
D5
D5
0
0
0
0
0
Doc ID 018835 Rev 2
2
C registers are dedicated to this function. One contains a
C4B12
C5B20
C5B12
C4B4
C5B4
D4
D4
D4
D4
D4
D4
0
0
0
0
0
C4B11
C5B19
C5B11
C4B3
C5B3
RA
D3
D3
D3
D3
D3
D3
0
0
0
0
0
0
C4B10
C5B18
C5B10
C4B2
C5B2
D2
D2
D2
D2
D2
D2
R1
0
0
0
0
0
0
C5B17
C4B9
C4B1
C5B9
C5B1
WA
D1
D1
D1
D1
D1
D1
0
0
0
0
0
0
STA381BW
C5B16
C4B8
C4B0
C5B8
C5B0
W1
D0
D0
D0
D0
D0
D0
0
0
0
0
0
0
2
C