參數(shù)資料
型號: ADSP-1981BL
廠商: Analog Devices, Inc.
元件分類: Codec
英文描述: AC 97 SoundMAX Codec
中文描述: 交流97 SoundMAX編解碼器
文件頁數(shù): 31/32頁
文件大小: 326K
代理商: ADSP-1981BL
AD1981BL
VENDOR ID REGISTERS
Index 0x7C–0x7E
Rev. A | Page 31 of 32
Reg No.
0x7C
S[7:0] This register is ASCII encoded to A.
Name
Vendor ID1
D15
F7
D14
F6
D13
F5
D12
F4
D11
F3
D10
F2
D9
F1
D8
F0
D7
S7
D6
S6
D5
S5
D4
S4
D3
S3
D2
S2
D1
S1
D0
S0
Default
0x4144
F[7:0] This register is ASCII encoded to D.
Reg No.
0x7E
T[7:0] This register is ASCII encoded to S.
Name
Vendor ID2
D15
T7
D14
T6
D13
T5
D12
T4
D11
T3
D10
T2
D9
T1
D8
T0
D7
REV7
D6
REV6
D5
REV5
D4
REV4
D3
REV3
D2
REV2
D1
REV1
D0
REV0
Default
0x5374
REV[7:0] Vendor-specific revision number: The AD1981BL assigns 0x74 to this field.
Table 44. Codec ID and External Clock Selection
ID1
ID0
Codec ID
1
1
(00) Primary
1
0
(01) Secondary
0
1
(00) Primary
0
0
(00) Primary
Internally, the ID pins have weak pull-ups and are inverted.
Codec Clocking Source
24.576 MHz
12.288 MHz
48.000 MHz
14.31818 MHz
Local crystal or external into XTL_IN.
External into BIT_CLK.
External into XTL_IN.
External into XTL_IN.
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