YMF743 Datasheet, PDF (14/24 Pages) YAMAHA CORPORATION – AC’97 Revsion2.1 Audio CODEC with Digital Audio I/F

YMF743
68h : 3D Mode Select (Read/Write, Default: 0C00h)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
-
-
-
-
WM1-0
-
-
-
-
-
-
-
-
-
-
WM1-0 .........These bits select the mode of 3D / Bass / Treble according to the frequency response of the
speaker.
WM1 WM0
3D Mode
Target Speaker
Speaker Size
0
0
Do not select.
–
–
0
1
DeskTop
Standard Speaker 5 – 12 cm
1
0
Notebook PC 1
Small Speaker
3 cm
1
1
Notebook PC 2
Smaller Speaker 1.5 cm
7Ch : Vendor ID 1 (Read Only, Default: 594Dh)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
“0” “1” “0” “1” “1” “0” “0” “1” “0” “1” “0” “0” “1” “1” “0” “1”
7Eh : Vendor ID 2 (Read Only, Default: 4800h)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
“0” “1” “0” “0” “1” “0” “0” “0” “0” “0” “0” “0” “0” “0” “0” “0”
7Ch and upper 8 bits of 7Eh indicate Yamaha vendor ID, which is “YMH”. “Y” is 59h, “M” is 4Dh, and “H”
is 48h with ASCII code.
Lower 8 bits of 7Eh is YMF743 revision ID (00h).
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December 18, 2000