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Programmer’s Reference Manual 39
Intel
®
High Definition Audio Controller Registers (D27:F0)
138h–13Bh OSD1BDPL
OSD1 Buffer Descriptor List Pointer-Lower
Base Address
00000000h R/W, RO
13Ch–13Fh OSD1BDPU
OSD1 Buffer Description List Pointer-Upper
Base Address
00000000h R/W
140h–142h OSD2CTL Output Stream Descriptor 2 (OSD2) Control 040000h R/W, RO
143h OSD2STS OSD2 Status 00h R/WC, RO
144h–147h OSD2LPIB OSD2 Link Position in Buffer 00000000h RO
148h–14Bh OSD2CBL OSD2 Cyclic Buffer Length 00000000h R/W
14Ch–14Dh OSD2LVI OSD2 Last Valid Index 0000h R/W
14Eh–14Fh OSD2FIFOW OSD2 FIFO Watermark 0004h R/W
150h–151h OSD2FIFOS OSD2 FIFO Size 00BFh R/W
152h–153h OSD2FMT OSD2 Format 0000h R/W
158h–15Bh OSD2BDPL
OSD2 Buffer Descriptor List Pointer-Lower
Base Address
00000000h R/W, RO
15Ch–15Fh OSD2BDPU
OSD2 Buffer Description List Pointer-Upper
Base Address
00000000h R/W
160h–162h OSD3CTL Output Stream Descriptor 3 (OSD3) Control 040000h R/W, RO
163h OSD3STS OSD3 Status 00h R/WC, RO
164h–167h OSD3LPIB OSD3 Link Position in Buffer 00000000h RO
168h–16Bh OSD3CBL OSD3 Cyclic Buffer Length 00000000h R/W
16Ch–16Dh OSD3LVI OSD3 Last Valid Index 0000h R/W
16Eh–16Fh OSD3FIFOW OSD3 FIFO Watermark 0004h R/W
170h–171h OSD3FIFOS OSD3 FIFO Size 00BFh R/W
172h–173h OSD3FMT OSD3 Format 0000h R/W
178h–17Bh OSD3BDPL
OSD3 Buffer Descriptor List Pointer-Lower
Base Address
00000000h R/W, RO
17Ch–17Fh OSD3BDPU
OSD3 Buffer Description List Pointer-Upper
Base Address
00000000h R/W
Table 1-2. Intel
®
High Definition Audio PCI Register Address Map
(Intel
®
High Definition Audio D27:F0) (Sheet 4 of 4)
HDBAR +
Offset
Mnemonic Register Name Default Access