82801DB Datasheet, PDF (496/587 Pages) Intel Corporation – Intel 82801DB I/O Controller Hub 4 (ICH4)

AC ’97 Modem Controller Registers (D31:F6)
15.1.7
15.1.8
15.1.9
SCC—Sub Class Code Register (Modem—D31:F6)
Address Offset: 0Ah
Default Value: 03h
Lockable:
No
Attribute:
Size:
Power Well:
RO
8 bits
Core
Bit
Sub Class Code — RO.
7:0
03h = Generic Modem.
Description
BCC—Base Class Code Register (Modem—D31:F6)
Address Offset: 0Bh
Default Value: 07h
Lockable:
No
Attribute:
Size:
Power Well:
RO
8 bits
Core
Bit
Description
Base Class Code — RO.
7:0
07h = Simple Communications controller.
HEDT—Header Type Register (Modem—D31:F6)
Address Offset: 0Eh
Default Value: 00h
Lockable:
No
Attribute:
Size:
Power Well:
RO
8 bits
Core
Bit
7:0 Header Type — RO.
Description
496
Intel^® 82801DB ICH4 Datasheet