Device overview STA381BW
All the control parameters listed in the previous paragraphs are stored in the internal device memory. Please refer to
Table 12 and
Table 13 for a complete list of their addresses.
For the programming procedure please refer to
Section 6.24: User-defined coefficient control registers (addr 0x27 - 0x37) . Be aware that the read-all operation is not available for
the STC coefficients memory.
Function
Table 12. STC coefficients memory map
Address Parameter Range Precision Unit
0x54 RR: release rate
0x55 AR: attack rate
0x56 LT: limiter threshold
0x57 CR: compressor ratio
0x58 CT: compressor threshold
[0.0078,1)
[0,16]
[-24, +12]
[0,15]
[-48, 0]
0.0039
0.25
0.25
1
0.25
dB/ms dB/ms dB index dB
Default
0x200000
0x200000
0x000000
0x000000
0x000000
OFFSET
Dynamic attack rate
CRC expected
CRC computed
Biquads CTRL
0x59 RR: release rate
05A AR: attack rate
0x5B LT: limiter threshold
0x5C CR: compressor ratio
0x5D CT: compressor threshold
[0.0078,1)
[0,16]
[-24, +12]
[0,15]
[-48, 0]
0x5E RR: release rate
0x5F AR: attack rate
0x60 LT: limiter threshold
0x61 CR: compressor ratio
0x62 CT: compressor threshold
[0.0078,1)
[0,16]
[-24, +12]
[0,15]
[-48, 0]
0x63 RR: release rate
0x64 AR: attack rate
0x65 LT: limiter threshold
0x66 CR: compressor ratio
0x67 CT: compressor threshold
0X68 OFS0: offset DRC 0
0X69 OFS1: offset DRC 1
0X6A OFS2: offset DRC 2
0X6B OFS3: offset DRC 3
[0.0078,1)
[0,16]
[-24, +12]
[0,15]
[-48, 0]
[0, +48]
[0, +48]
[0, +48]
[0, +48]
0x71 DAR: dynamic attack rate
0x72
0x73
0x74
Band splitter filter coefficients range
[0, 1)
0.0039
0.25
0.25
1
0.25
0.25
0.25
0.25
0.25
0.0039
0.25
0.25
1
0.25
0.0039
0.25
0.25
1
0.25
0.0039
dB/ms dB/ms dB index dB dB dB dB dB dB/ms dB/ms dB index dB dB/ms dB/ms dB index dB ms/dB
0x200000
0x200000
0x000000
0x000000
0x000000
0x000000
0x000000
0x000000
0x000000
0x200000
0x200000
0x000000
0x000000
0x000000
0x200000
0x200000
0x000000
0x000000
0x000000
0x000000
0x0000AA
40/174 DocID018835 Rev 8
STA381BW
Function
0x45
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
0x50
0x51
0x52
0x53
Table 13. STC band splitter filters memory map
Address Coefficient Range
0x40
0x41
0x42
0x43
0x44
B1/2
B2
-A1/2
-A2
B0/2
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
B1/2
B2
-A1/2
-A2
B0/2
B1/2
B2
-A1/2
-A2
B0/2
B1/2
B2
-A1/2
-A2
B0/2
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
[-1, 1), [-2, 2), [-4, 4)
Device overview
Default
0x000000
0x000000
0x000000
0x000000
0x100000
0x000000
0x000000
0x000000
0x000000
0x100000
0x000000
0x000000
0x000000
0x000000
0x100000
0x000000
0x000000
0x000000
0x000000
0x100000
DocID018835 Rev 8 41/174
