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82801DB Datasheet, PDF (16/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4) | |||
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AC â97 Audio Controller Registers (D31:F5).......................................... 467
14.1 AC â97 Audio PCI Configuration Space (D31:F5) ........................................ 467
14.1.1 VIDâVendor Identification Register (AudioâD31:F5) ................... 468
14.1.2 DIDâDevice Identification Register (AudioâD31:F5).................... 468
14.1.3 PCICMDâPCI Command Register (AudioâD31:F5) .................... 469
14.1.4 PCISTSâPCI Device Status Register (AudioâD31:F5)................ 470
14.1.5 RIDâRevision Identification Register (AudioâD31:F5)................. 471
14.1.6 PIâProgramming Interface Register (AudioâD31:F5) .................. 471
14.1.7 SCCâSub Class Code Register (AudioâD31:F5) ........................ 471
14.1.8 BCCâBase Class Code Register (AudioâD31:F5)....................... 471
14.1.9 HEDTâHeader Type Register (AudioâD31:F5) ........................... 472
14.1.10 NAMBARâNative Audio Mixer Base Address Register
(AudioâD31:F5) ............................................................................. 472
14.1.11 NABMBARâNative Audio Bus Mastering Base Address Register
(AudioâD31:F5) ............................................................................. 473
14.1.12 MMBARâMixer Base Address Register (AudioâD31:F5) ............ 473
14.1.13 MBBARâBus Master Base Address Register
(AudioâD31:F5) ............................................................................. 474
14.1.14 SVIDâSubsystem Vendor ID Register (AudioâD31:F5)............... 474
14.1.15 SIDâSubsystem ID Register (AudioâD31:F5).............................. 475
14.1.16 CAP_PTRâCapabilities Pointer Register (AudioâD31:F5) .......... 475
14.1.17 INTR_LNâInterrupt Line Register (AudioâD31:F5)...................... 475
14.1.18 INTR_PNâInterrupt Pin Register (AudioâD31:F5) ....................... 476
14.1.19 PCIDâProgrammable Codec ID Register (AudioâD31:F5).......... 476
14.1.20 CFGâConfiguration Register (AudioâD31:F5) ............................. 477
14.1.21 PIDâPCI Power Management Capability ID Register
(AudioâD31:F5) ............................................................................. 477
14.1.22 PCâPower Management Capabilities Register
(AudioâD31:F5) ............................................................................. 477
14.1.23 PCSâPower Management Control and Status Register
(AudioâD31:F5) ............................................................................. 478
14.2 AC â97 Audio I/O Space (D31:F5)................................................................ 479
14.2.1 x_BDBARâBuffer Descriptor Base Address Register ................... 482
14.2.2 x_CIVâCurrent Index Value Register ............................................ 483
14.2.3 x_LVIâLast Valid Index Register ................................................... 483
14.2.4 x_SRâStatus Register ................................................................... 484
14.2.5 x_PICBâPosition In Current Buffer Register ................................. 485
14.2.6 x_PIVâPrefetched Index Value Register ....................................... 485
14.2.7 x_CRâControl Register ................................................................. 486
14.2.8 GLOB_CNTâGlobal Control Register............................................ 487
14.2.9 GLOB_STAâGlobal Status Register ............................................. 488
14.2.10 CASâCodec Access Semaphore Register .................................... 490
14.2.11 SDMâSDATA_IN Map Register .................................................... 491
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AC â97 Modem Controller Registers (D31:F6)....................................... 493
15.1 AC â97 Modem PCI Configuration Space (D31:F6) ..................................... 493
15.1.1 VIDâVendor Identification Register (ModemâD31:F6) ................ 494
15.1.2 DIDâDevice Identification Register (ModemâD31:F6)................. 494
15.1.3 PCICMDâPCI Command Register (ModemâD31:F6) ................. 494
15.1.4 PCISTAâDevice Status Register (ModemâD31:F6) .................... 495
15.1.5 RIDâRevision Identification Register (ModemâD31:F6) .............. 495
15.1.6 PIâProgramming Interface Register (ModemâD31:F6) ............... 495
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Intel® 82801DB ICH4 Datasheet
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