LPC Interface Bridge Registers (D31:F0)
13.5.2
IND—Index Register (LPC I/F—D31:F0)
Memory Address FEC0_0000h (Consumer Only)
FEC_ _0000h (Corporate Only)
Attribute:
Size:
R/W
Default Value:
00h
8 bits
The Index Register will select which APIC indirect register to be manipulated by
software. The selector values for the indirect registers are listed in Table 13-5. Software
will program this register to select the desired APIC internal register
.
Bit
Description
7:0
APIC Index — R/W. This is an 8-bit pointer into the I/O APIC register table.
13.5.3
DAT—Data Register (LPC I/F—D31:F0)
Memory Address FEC0_0000h (Consumer Only) Attribute:
FEC_ _0000h (Corporate Only)
R/W
Default Value:
00000000h
Size:
32 bits
This is a 32-bit register specifying the data to be read or written to the register pointed
to by the Index register. This register can only be accessed in dword quantities.
Bit
Description
APIC Data — R/W. This is a 32-bit register for the data to be read or written to the
APIC indirect register (Figure 13-5) pointed to by the Index register (Memory Address
FEC0_0000h).
7:0
434
Datasheet
INTEL [ INTEL ]
