Dma Channels; Pci Configuration Space Map - Intel D845GRG Using Manual

2.4 DMA Channels

Table 17.

DMA Channels

DMA Channel Number
0
1
2
3
4
5
6
7

2.5 PCI Configuration Space Map

Table 18.

PCI Configuration Space Map

Bus Device
Number (hex) Number (hex)
00 00
00 01
00 02
00 1E
00 1F
00 1F
00 1F
00 1F
00 1F
00 1D
00 1D
00 1D
00 1D
01 1D
(Note 1)
08
(Note 1)
00
(Note 1)
01
(Note 1)
02
(Note 1)
03
(Note 1)
04
(Note 1)
05
Notes: 1. Bus number = 01 when the Intel Extreme Graphics controller is used. Bus number = 02 when an AGP
add-in card is used.
2. For Desktop Boards with six PCI bus connectors.
Data Width
8 or 16 bits
8 or 16 bits
8 or 16 bits
8 or 16 bits
8 or 16 bits
16 bits
16 bits
16 bits
Function
Number (hex) Description
00 Memory controller of Intel 82845G component
00 Host to AGP bridge (virtual P2P)
00 Intel Extreme Graphics controller
00 Hub link to PCI bridge
00 Intel 82801DB ICH4 PCI to LPC bridge
01 IDE controller
03 SMBus controller
05 AC '97 audio controller
06 AC '97 modem controller (optional)
00 USB UHCI controller 1
01 USB UHCI controller 2
02 USB UHCI controller 3
07 EHCI controller
00 AGP add-in card
00 LAN controller (optional)
00 PCI bus connector 1
00 PCI bus connector 2
00 PCI bus connector 3
00 PCI bus connector 4
00 PCI bus connector 5
00 PCI bus connector 6
Technical Reference
System Resource
Open
Parallel port
Diskette drive
Parallel port (for ECP or EPP)
DMA controller
Open
Open
Open
(Note 2)
(Note 2)
(Note 2)
43