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82801AA and 82801AB Datasheet
8-17
LPC Interface Bridge Registers (D31:F0)
8.1.29
LPC_EN—LPC I/F Enables (LPC I/F—D31:F0)
Offset:
Default Value:
Lockable:
E6h–E7h
00h
Yes
Attribute:
Size:
Power Well:
Read/Write
16 bits
Core
For the bits in this register 1 = Enable and 0 = Disable.
Bit
Description
15:14
Reserved
13
CNF2_LPC_EN.
This bit enables the decoding of the I/O locations 4Eh and 4Fh to the LPC
interface. This range is used for a microcontroller.
12
CNF1_LPC_EN.
This bit enables the decoding of the I/O locations 2Eh and 2Fh to the LPC
interface. This range is used for Super I/O devices.
11
MC_LPC_EN:
This bit enables the decoding of the I/O locations 62h and 66h to the LPC interface.
This range is used for a MicroController.
10
KBC_LPC_EN:
This bit enables the decoding of the I/O locations 60h and 64h to the LPC interface.
This range is used for a microcontroller.
9
GAMEH_LPC_EN:
This bit enables the decoding of the I/O locations 208h to 20Fh to the LPC
interface. This range is used for a game port.
8
GAMEL_LPC_EN:
This bit enables the decoding of the I/O locations 200h to 207h to the LPC
interface. This range is used for a game port.
7
ADLIB_LPC_EN:
This bit enables the decoding of the I/O locations 388h
–
38Bh to the LPC
interface.
6
MSS_LPC_EN:
This bit enables the decoding of the MSS range to the LPC interface. This range is
selected in the LPC_Sound Decode Range Register.
5
MIDI_LPC_EN:
This bit enables the decoding of the MIDI range to the LPC interface. This range is
selected in the LPC_Sound Decode Range Register.
4
SB16_LPC_EN:
This bit enables the decoding of the SB16 range to the LPC interface. This range
is selected in the LPC_Sound Decode Range Register.
3
FDD_LPC_EN:
This bit enables the decoding of the FDD range to the LPC interface. This range is
selected in the LPC_FDD/LPT Decode Range Register.
2
LPT_LPC_EN:
This bit enables the decoding of the LPTrange to the LPC interface. This range is
selected in the LPC_FDD/LPT Decode Range Register.
1
COMB_LPC_EN:
This bit enables the decoding of the COMB range to the LPC interface. This
range is selected in the LPC_COM Decode Range Register.
0
COMA_LPC_EN:
This bit enables the decoding of the COMA range to the LPC interface. This
range is selected in the LPC_COM Decode Range Register.