VT82C686B
Offset 13-10 - Pri Data / Command Base Address..........RW
pecifies an 8 byte I/O address space.
Offset 34 - Capability Pointer (C0h)................................ RO
Offset 3C - Interrupt Line (0Eh) ...................................... RO
Offset 3D - Interrupt Pin (00h)......................................... RO
S
..........................................always read 0
31-16 Reserved
....................................... default=01F0h
..................................................... fixed
15-3 Port Address
2-0 Fixed at 001b
7-0 Interrupt Routing Mode
00h Legacy mode interrupt routing............... default
01h Native mode interrupt routing
Offset 17-14 - Pri Control / Status Base Address............RW
Specifies a 4 byte I/O address space of which only the third
byte is active (i.e., 3F6h for the default base address of 3F4h).
Offset 3E - Min Gnt (00h)................................................. RO
Offset 3F - Max Latency (00h).......................................... RO
..........................................always read 0
....................................... default=03F4h
....................................................... fixed
31-16 Reserved
15-2 Port Address
1-0 Fixed at 01b
Offset 1B-18 - Sec Data / Command Base Address ........RW
pecifies an 8 byte I/O address space.
S
..........................................always read 0
31-16 Reserved
...................................... default=0170h
..................................................... fixed
15-3 Port Address
2-0 Fixed at 001b
Offset 1F-1C - Sec Control / Status Base Address..........RW
Specifies a 4 byte I/O address space of which only the third
byte is active (i.e., 376h for the default base address of 374h).
..........................................always read 0
...................................... default=0374h
....................................................... fixed
31-16 Reserved
15-2 Port Address
1-0 Fixed at 01b
Offset 23-20 - Bus Master Control Regs Base Address..RW
Specifies a 16 byte I/O address space compliant with the
SFF-
i
specification.
8038 rev 1.0
..........................................always read 0
....................................... default=CC0h
31-16 Reserved
15-4 Port Address
3-0 Fixed at 0001b
.................................................. fixed
Revision 1.71 June 9, 2000
-69-
Function 1 Registers - Enhanced IDE Controller
ETC [ ETC ]
