82NM10 Datasheet, PDF (577/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

Intel HD Audio Controller Registers (D27:F0)
18.1.10 LT—Latency Timer Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 0Dh
Default Value: 00h
Attribute:
Size:
Bit
Description
7:0 Latency Timer — RO. Hardwired to 00
RO
8 bits
18.1.11 HEADTYP—Header Type Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 0Eh
Default Value: 00h
Attribute:
Size:
Bit
Description
7:0 Header Type — RO. Hardwired to 00.
RO
8 bits
18.1.12 HDBARL—Intel HD Audio Lower Base Address Register
(Intel HD Audio—D27:F0)
Address Offset: 10h-13h
Default Value: 00000004h
Attribute:
Size:
R/W, RO
32 bits
Bit
Description
31:14 Lower Base Address (LBA) — R/W. This field contains the base address for the Intel
HD Audio controller’s memory mapped configuration registers; 16 KB are requested by
hardwiring bits 13:4 to 0s.
13:4 RO. Hardwired to 0s
3 Prefetchable (PREF) — RO. Hardwired to 0 to indicate that this BAR is NOT
prefetchable.
2:1 Address Range (ADDRNG) — RO. Hardwired to 10b, indicating that this BAR can be
located anywhere in 64-bit address space.
0 Space Type (SPTYP) — RO. Hardwired to 0. Indicates this BAR is located in memory
space.
18.1.13 HDBARU—Intel HD Audio Upper Base Address Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 14h-17h
Default Value: 00000000h
Attribute:
Size:
R/W
32 bits
Bit
Description
31:0 Upper Base Address (UBA) — R/W. This field provides the upper 32 bits of the Base
address for the Intel HD Audio controller’s memory mapped configuration registers.
Datasheet
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