STA382BW Datasheet, PDF (38/172 Pages) STMicroelectronics – Sound Terminal® 2.1-channel high-efficiency digital audio system

Device overview
STA382BW
4.3.10
Memory map
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.
Table 12. STC coefficients memory map
Function
Address
Parameter
0x54 RR: release rate
0x55 AR: attack rate
0x56 LT: limiter threshold
0x57 CR: compressor ratio
0x58 CT: compressor threshold
Range
[0.0078,1)
[0,16]
[-24, +12]
[0,15]
[-48, 0]
Precision Unit
0.0039 dB/ms
0.25 dB/ms
0.25
dB
1
index
0.25
dB
Default
0x200000
0x200000
0x000000
0x000000
0x000000
0x59
05A
0x5B
0x5C
0x5D
RR: release rate
AR: attack rate
LT: limiter threshold
CR: compressor ratio
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
0x200000
0x200000
0x000000
0x000000
0x000000
0x5E
0x5F
0x60
0x61
0x62
RR: release rate
AR: attack rate
LT: limiter threshold
CR: compressor ratio
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
0x200000
0x200000
0x000000
0x000000
0x000000
0x63
0x64
0x65
0x66
0x67
RR: release rate
AR: attack rate
LT: limiter threshold
CR: compressor ratio
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
0x200000
0x200000
0x000000
0x000000
0x000000
OFFSET
0X68
0X69
0X6A
0X6B
OFS0: offset DRC 0
OFS1: offset DRC 1
OFS2: offset DRC 2
OFS3: offset DRC 3
[0, +48]
0.25
[0, +48]
0.25
[0, +48]
0.25
[0, +48]
0.25
dB
0x000000
dB
0x000000
dB
0x000000
dB
0x000000
Dynamic attack rate
CRC expected
CRC computed
Biquads CTRL
0x71
0x72
0x73
0x74
DAR: dynamic attack rate
Band splitter filter
coefficients range
[0, 1)
0.0039 ms/dB 0x000000
0x0000AA
38/172
Doc ID 022783 Rev 1