82801BA Datasheet, PDF (19/498 Pages) Intel Corporation – Intel 82801BA I/O Controller Hub 2 (ICH2) and Intel 82801BAM I/O Controller Hub 2 Mobile

13.1.13 SID—Subsystem ID Register (Audio—D31:F5).............................13-6
13.1.14 INTR_LN—Interrupt Line Register (Audio—D31:F5) .....................13-6
13.1.15 INTR_PN—Interrupt Pin Register (Audio—D31:F5) ......................13-7
13.2 AC’97 Audio I/O Space (D31:F5)................................................................13-7
13.2.1 x_BDBAR—Buffer Descriptor Base Address Register ..................13-9
13.2.2 x_CIV—Current Index Value Register .........................................13-10
13.2.3 x_LVI—Last Valid Index Register ................................................13-10
13.2.4 x_SR—Status Register ................................................................13-11
13.2.5 x_PICB—Position In Current Buffer Register ..............................13-12
13.2.6 x_PIV—Prefetched Index Value Register ....................................13-12
13.2.7 x_CR—Control Register ..............................................................13-13
13.2.8 GLOB_CNT—Global Control Register.........................................13-14
13.2.9 GLOB_STA—Global Status Register ..........................................13-15
13.2.10 CAS—Codec Access Semaphore Register .................................13-16
14
AC’97 Modem Controller Registers (D31:F6) ..........................................................14-1
14.1 AC’97 Modem PCI Configuration Space (D31:F6) .....................................14-1
14.1.1 VID—Vendor Identification Register (Modem—D31:F6) ...............14-1
14.1.2 DID—Device Identification Register (Modem—D31:F6) ................14-2
14.1.3 PCICMD—PCI Command Register (Modem—D31:F6) ................14-2
14.1.4 PCISTA—Device Status Register (Modem—D31:F6) ...................14-3
14.1.5 RID—Revision Identification Register (Modem—D31:F6) .............14-3
14.1.6 PI—Programming Interface Register (Modem—D31:F6) ..............14-3
14.1.7 SCC—Sub Class Code Register (Modem—D31:F6).....................14-4
14.1.8 BCC—Base Class Code Register (Modem—D31:F6) ...................14-4
14.1.9 HEDT—Header Type Register (Modem—D31:F6)........................14-4
14.1.10 MMBAR—Modem Mixer Base Address Register
(Modem—D31:F6) .........................................................................14-4
14.1.11 MBAR—Modem Base Address Register (Modem—D31:F6) ........14-5
14.1.12 SVID—Subsystem Vendor ID (Modem—D31:F6) .........................14-5
14.1.13 SID—Subsystem ID (Modem—D31:F6) ........................................14-6
14.1.14 INTR_LN—Interrupt Line Register (Modem—D31:F6) ..................14-6
14.1.15 INT_PIN—Interrupt Pin (Modem—D31:F6) ...................................14-6
14.2 AC’97 Modem I/O Space (D31:F6) .............................................................14-7
14.2.1 x_BDBAR—Buffer Descriptor List Base Address Register ............14-8
14.2.2 x_CIV—Current Index Value Register ...........................................14-9
14.2.3 x_LVI—Last Valid Index Register ..................................................14-9
14.2.4 x_SR—Status Register ................................................................14-10
14.2.5 x_PICB—Position In Current Buffer Register ..............................14-11
14.2.6 x_PIV—Prefetch Index Value Register ........................................14-11
14.2.7 x_CR—Control Register ..............................................................14-11
14.2.8 GLOB_CNT—Global Control Register.........................................14-12
14.2.9 GLOB_STA—Global Status Register ..........................................14-13
14.2.10 CAS—Codec Access Semaphore Register .................................14-14
15
Pinout and Package Information..............................................................................15-1
15.1 Pinout..........................................................................................................15-1
15.2 Package Information .................................................................................15-14
82801BA ICH2 and 82801BAM ICH2-M Datasheet
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