Datasheet

Register and Memory Mapping
Intel
®
Atom™ Processor E6xx Series Datasheet
61
5.5.1.2 Offset 0004h: ESD – Element Self Description
5.5.1.3 Offset 0010h: HDD – Intel
®
High Definition Audio
β
Description
5.5.1.4 Offset 0018h: HDBA – Intel
®
High Definition Audio
β
Base Address
Table 44. 0004h: ESD – Element Self Description
Size: 32 bit Default: Power Well:
Memory Mapped IO BAR: RCBA Offset: 0004h - 0007h
Bit Range Default Access Acronym Description
31 :24 00h RO PN Port Number: A value of 0 indicates the egress port.
23 :16 00h RWO CID
Component ID: This indicates the component ID assigned to this
element by software. This is written once by the platform BIOS and is
locked until a platform reset.
15 :08 01h RO NLE
Number of Link Entries: Indicates that one link entry is described by
this RCRB
07 :04 0 RO RSVD Reserved
03 :00 2h RO ET
Element Type: Indicates that the element type is a root complex
internal link
Table 45. 0010h: HDD – Intel
®
High Definition Audio
β
Description
Size: 32 bit Default: Power Well:
Memory Mapped IO BAR: RCBA Offset: 0010h - 0013h
Bit Range Default Access Acronym Description
31 :24 Fh RO PN
Target Port Number: Indicates that the target port number is 15
(Intel
®
HD Audio
β
)
23 :16 Variable RO TCID
Target Component ID: This field returns the value of the ESD.CID field
programmed by the platform BIOS, since the root port is in the same
component as the RCRB.
15 :02 0 RO RSVD Reserved
01 1 RO LT Link Type: Indicates that the link points to a root port
00 1 RO LV Link Valid: Link is always valid.
Table 46. 0018h: HDBA – Intel
®
High Definition Audio
β
Base Address
Size: 64 bit Default: Power Well:
Memory Mapped IO BAR: RCBA Offset: 0018h - 008Fh
Bit Range Default Access Acronym Description
63 :32 0h RO CBAU Config Space Base Address Upper: Reserved
31 :28 0h RO CBAL Config Space Base Address Lower: Reserved
27 :20 0h RO BN Bus Number: Indicates Intel
®
HD Audio
β
is on bus #0
19 :15 1Bh RO DN Device Number: Indicates Intel
®
HD Audio
β
is in device #27
14 :12 0h RO FN Function Number: Indicates Intel
®
HD Audio
β
is in function #0
11 :00 0 RO RSVD Reserved