876784 Intel, 876784 Datasheet - Page 705

• Manufacturer Part Number: 876784
• Manufacturer: Intel

Specifications of 876784

• Lead Free Status / RoHS Status: Compliant

Intel® High Definition Audio Controller Registers (D27:F0)
19
Note:
Note:
19.1
Note:
Table 19-1. Intel
Intel
®
ICH7 Family Datasheet
Intel
Controller Registers (D27:F0)
The Intel
0. This function contains a set of DMA engines that are used to move samples of
digitally encoded data between system memory and external codecs.
All registers in this function (including memory-mapped registers) must be addressable
in byte, word, and D-word quantities. The software must always make register
accesses on natural boundaries (i.e. D-word accesses must be on D-word boundaries;
word accesses on word boundaries, etc.) In addition, the memory-mapped register
space must not be accessed with the LOCK semantic exclusive-access mechanism. If
software attempts exclusive-access mechanisms to the Intel High Definition Audio
memory-mapped space, the results are undefined.
Users interested in providing feedback on the Intel High Definition Audio specification
or planning to implement the Intel High Definition Audio specification into a future
product will need to execute the Intel
Agreement. For more information, contact [e-mail].
Intel
Space (Intel
Address locations that are not shown should be treated as Reserved.
(Intel
2Ch–2Dh
00h–01h
02h–03h
04h–05h
06h–07h
10h–13h
14h–17h
2Eh–2Fh
Offset
0Ah
0Bh
0Ch
0Dh
08h
09h
0Eh
34h
®
®
High Definition Audio PCI Register Address Map
High Definition Audio D27:F0) (Sheet 1 of 2)
®
®
High Definition Audio controller resides in PCI Device 27, Function 0 on bus
High Definition Audio PCI Configuration
®
Mnemonic
HEADTYP
HDBARU
HDBARL
PCICMD
CAPPTR
PCISTS
SVID
SCC
BCC
DID
RID
CLS
VID
SID
High Definition Audio
PI
LT
®
High Definition Audio— D27:F0)
Vendor Identification
Device Identification
PCI Command
PCI Status
Revision Identification
Programming Interface
Sub Class Code
Base Class Code
Cache Line Size
Latency Timer
Header Type
Intel
Address (Memory)
Intel® High Definition Audio Upper Base
Address (Memory)
Subsystem Vendor Identification
Subsystem Identification
Capability List Pointer
®
High Definition Audio Lower Base
Register Name
®
High Definition Audio Specification Developer’s
See register
See register
description.
description.
00000004h
00000000h
Default
8086h
0000h
0010h
0000h
0000h
00h
03h
04h
00h
00h
00h
50h
R/WC, RO
R/W, RO
R/W, RO
Access
R/WO
R/WO
R/W
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
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