Datasheet

OBSOLETE
LM4550
www.ti.com SNAS032F –SEPTEMBER 2001–REVISED APRIL 2013
SLOT 0: TAG bits in Output Frames (controller to codec)
Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Valid Slot 1 Slot 2 Slot 3 Slot 4 Slot 6 Slot 7 Slot 8 Slot 9
X X X X X ID1 ID0
Frame Valid Valid Valid Valid Valid Valid Valid Valid
Extended Audio ID register (28h): Support for Multiple Codecs
Reg Name D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Default
Extended
28h ID1 ID0 X X X X AMAP X X X X X X X X VRA X201h
Audio ID
Table 19. AMAP Slot-to-DAC Audio MAPping
Left DAC data Right DAC data
Codec Identity ID1 ID0
Mode (D15, 28h) (D14, 28h) From Slot # 5.1 Audio channel
(1)
From Slot # 5.1 Audio channel
(1)
Primary 0 0 3 Left 4 Right
Secondary 1 0 1 3 Left 4 Right
Secondary 2 1 0 7 Left Surround 8 Right Surround
Secondary 3 1 1 6 Center 9 LFE
(1) AC '97 Rev 2.1 specifies this allocation of 5.1 Audio channels to these slots in the AC Link Output Frame
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