AD1985 Analog Devices, AD1985 Datasheet - Page 27

• Manufacturer Part Number: AD1985
• Description: AC'97 2.3 Soundmax Codec W/jack Sensing
• Manufacturer: Analog Devices

Extended Audio ID Register (Index 0x28)
Reg
Num
0x28 Extended
The Extended Audio ID register identifies which extended audio features are supported. A nonzero Extended Audio ID value indicates that
one or more of the extended audio features are supported.
AIDVRA
AIDSPDIF
DRA
DSA[1:0]
AIDCDAC
AIDSDAC
AIDLDAC
AMAP
REV[1:0]
AID[1:0]
Name
Audio ID
Variable Rate PCM Audio support. (Read-only.) This bit returns a 1 when read to indicate that Variable Rate PCM Audio is
supported.
SPDIF support. (Read-only.) This bit returns a 1 when read to indicate that SPDIF transmitter is supported. (IEC958).
Double Rate Audio. (Read-only.) This bit returns a 1 when read to indicate that the optional Double Rate PCM Audio is
supported for PCM L and PCM R
DAC Slot Assignments. (Read/write; reset default = 00.)
00: DACs 1, 2 = 3 and 4
01: DACs 1, 2 = 7 and 8
10: DACs 1, 2 = 6 and 9
11: DACs 1, 2 = 10 and 11 DACs 3, 4 = 3 and 4
PCM CENTER DAC support. (Read-only.) This bit returns a 1 when read to indicate that PCM Center DAC is supported.
PCM Surround DAC support. (Read-only.) This bit returns a 1 when read to indicate that PCM Surround left and right DACs are
supported.
PCM LFE DAC support. (Read-only.) This bit returns a 1 when read to indicate that PCM LFE DAC is supported.
Slot DAC mappings based on Codec ID. (Read-only.) This bit returns a 1 when read to indicate that slot/DAC mappings based
on Codec ID is supported.
REV[1:0] = 10 indicates that codec is AC ’97 Revision 2.3 compliant. (Read-only.)
Indicates codec configuration. (Read-only.)
00 = Primary.
01, 10, 11 = Secondary.
D15 D14 D13 D12 D11 D10 D9
AID1 AID0 X
X
REV1 REV0 AMAP AIDLDAC AIDSDAC AIDCDAC DSA1 DSA0 X AIDSPDIF AIDDRA AIDVRA 0xXBC7
DACs 3, 4 = 7 and 8
DACs 3, 4 = 6 and 9
DACs 3, 4 = 10 and 11
D8
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DACs 5, 6 = 6 and 9
DACs 5, 6 = 10 and 11
DACs 5, 6 = 3 and 4
DACs 5, 6 = 7 and 8
D7
D6
D5
D4
D3 D2
D1
D0
AD1985
Default