xviii
82801BA ICH2
Datasheet
12.2.7 BLOCK_DB—Block Data Byte Register........................................12-9
12.2.8 RCV_SLVA—Receive Slave Address Register.............................12-9
12.2.9 SLV_DATA—Receive Slave Data Register...................................12-9
12.2.10 SMLINK_PIN_CTL—SMLINK Pin Control Register.....................12-10
12.2.11 SMBUS_PIN_CTL SMBus Pin Control Register..........................12-10
13
AC’97 Audio Controller Registers (D31:F5).............................................................13-1
13.1
AC’97 Audio PCI Configuration Space (D31:F5)........................................13-1
13.1.1 VID—Vendor Identification Register (Audio—D31:F5)..................13-1
13.1.2 DID—Device Identification Register (Audio—D31:F5)...................13-2
13.1.3 PCICMD—PCI Command Register (Audio—D31:F5)...................13-2
13.1.4 PCISTS—PCI Device Status Register (Audio—D31:F5)...............13-3
13.1.5 RID—Revision Identification Register (Audio—D31:F5)................13-3
13.1.6 PI—Programming Interface Register (Audio—D31:F5).................13-3
13.1.7 SCC—Sub Class Code Register (Audio—D31:F5) .......................13-4
13.1.8 BCC—Base Class Code Register (Audio—D31:F5)......................13-4
13.1.9 HEDT—Header Type Register (Audio—D31:F5) ..........................13-4
13.1.10 NAMBAR—Native Audio Mixer Base Address Register
(Audio—D31:F5)............................................................................13-5
13.1.11 NABMBAR—Native Audio Bus Mastering Base Address
Register (Audio—D31:F5)..............................................................13-5
13.1.12 SVID—Subsystem Vendor ID Register (Audio—D31:F5)..............13-6
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
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