82NM10 Datasheet, PDF (597/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

Intel HD Audio Controller Registers (D27:F0)
18.2.2
18.2.3
18.2.4
VMIN—Minor Version Register
(Intel HD Audio Controller—D27:F0)
Memory Address:HDBAR + 02h
Attribute:
RO
Default Value:
00hSize:8 bits
Bit
Description
7:0 Minor Version — RO. Hardwired to 0 indicating that the Chipset supports minor
revision number 00h of the Intel HD Audio specification.
VMAJ—Major Version Register
(Intel HD Audio Controller—D27:F0)
Memory Address:HDBAR + 03h
Attribute:
RO
Default Value:
01hSize:8 bits
Bit
Description
7:0 Major Version — RO. Hardwired to 01h indicating that the Chipset supports major
revision number 1 of the Intel HD Audio specification.
OUTPAY—Output Payload Capability Register
(Intel HD Audio Controller—D27:F0)
Memory Address:HDBAR + 04h
Attribute:
RO
Default Value:
003ChSize:16 bits
Bit
Description
15:7
6:0
Reserved.
Output Payload Capability — RO. Hardwired to 3Ch indicating 60 word payload.
This field indicates the total output payload available on the link. This does not include
bandwidth used for command and control. This measurement is in 16-bit word
quantities per 48 MHz frame. The default link clock of 24.000 MHz (the data is double
pumped) provides 1000 bits per frame, or 62.5 words in total. 40 bits are used for
command and control, leaving 60 words available for data payload.
00h = 0 word
01h = 1 word payload.
.....
FFh = 256 word payload.
Datasheet
597