Soft-Off Control; Pci Configuration Space Map; Dma Channels - Intel AP440FX Technical Product Specification

2.3 Soft-Off Control

The motherboard design uses Soft-off control implemented under the SMM code in the BIOS.
Any power supply used with the AP440FX motherboard must support the Soft-off feature. The
ONCTL# pin of the I/O controller is connected to the Soft-off control line in the power supply
circuit. The registers in the I/O controller that set the I/O address and control the ONCTL# pin are
not setup until the SMM code is activated.

2.4 PCI Configuration Space Map

Table 30. PCI Configuration Space Map
Bus Number (hex) Dev Number (hex) Function Number (hex) Description
00
00
00
00
00
00
00
00

2.5 DMA Channels

Table 31. DMA Channels
DMA Data Width
0 8- or 16-bits
1 8- or 16-bits
2 8- or 16-bits
3 8- or 16-bits
4
5 16-bits
6 16-bits
7 16-bits
00 00
07 00
07 01
07 02
08 00
13 00
11 00
0B 00
Resource
Open
Audio
Floppy
Parallel Port (for ECP/EPP Config.)
Reserved - Cascade channel
Open
Open
Open
Motherboard Resources
Intel 82440FX (PMC) Host Bridge
Intel 82371SB (PIIX3 ) ISA bridge
Intel 82371SB (PIIX3 ) IDE Controller
Intel 82371SB (PIIX3) USB
Video Controller
PCI Expansion Slot: user available
PCI Expansion Slot: user available
PCI Expansion Slot: Optional PCI
Expansion Slot for 3 slot Riser
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