alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 51

• Manufacturer Part Number: alc268
• Description: 2+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

8.13. Verb – Get Converter Format (Verb ID=Ah)
2+2 Channel High Definition Audio Codec
Get Command Format
Codec Response for NID=02h, 03h, 06h (Output Converters: LOUT1 DAC, LOUT2 DAC, S/PDIF-OUT).
Codec Response for NID=07h, 08h (Input Converters: MIC ADC, LINE ADC)
Codec Response for other NID
Bit [31:28]
NID=02h (LOUT1 DAC)
NID=03h (LOUT2 DAC)
NID=06h (S/PDIF-OUT)
NID=08h (LINE ADC)
NID=07h (MIC ADC)
Cad=X
31:16
13:11
10:8
31:0
6:4
3:0
Bit
Bit
15
14
7
Description
Reserved. Read as 0.
Stream Type (TYPE).
0: PCM
Sample Base Rate (BASE).
0: 48kHz
Sample Base Rate Multiple (MULT).
000b: *1
Sample Base Rate Divisor (DIV).
000b: /1
100b: /5
The ALC268 does not support Divisor. Always read as 000b.
Reserved. Read as 0.
Bits per Sample (BITS).
000b: 8 bits
100b: 32 bits
Number of Channels.
0: 1 channel
Description
Not Supported (returns 00000000h).
Node ID=Xh
Bit [27:20]
Table 45. Verb – Get Converter Format (Verb ID=Ah)
BASE
Verb ID=Ah
Bit [19:16]
1: Non-PCM
1: 44.1kHz
001b: 16 bits
101b~111b: Reserved
1: 2 channels
001b: *2
001b: /2
101b: /6
0
1
0
1
0
1
0
1
0
1
000b, 001b, 011b
000b, 001b, 011b
000b, 001b, 011b
000b, 001b
000b, 001b
000b, 001b
MULT
000b
000b
000b
000b
Payload Bit [15:0]
010b: 20 bits
2: 3 channels
010b: *3
010b: /3
110b: /7
43
0’s
000b
000b
000b
000b
000b
000b
000b
000b
000b
000b
DIV
011b: 24 bits
………
011b: *4
011b: /4
111b: /8
001b, 010b, 011b, 100b
001b, 010b, 011b, 100b
001b, 010b, 011b
001b, 010b, 011b
001b, 010b, 011b
001b, 010b, 011b
001b, 010b, 011b
001b, 010b, 011b
001b, 010b, 011b
001b, 010b, 011b
Track ID: JATR-1076-21
BITS
Bit[15:0] are converter format
Codec Response Format
Response [31:0]
15: 16 channels
100b~111b: Reserved.
ALC268 Series
48K, 96K, 192K
48K, 96K,192K
48K, 96K,192K
44.1K, 88.2K
Sample Rate
48K, 96K
48K, 96K
Datasheet
44.1K
44.1K
44.1K
44.1K
Rev. 1.3