Intel D850EMV2 Product Specification - Page 49

DMA Channels, 5 PCI Configuration Space Map

Page 49 highlights

Technical Reference 2.4 DMA Channels Table 17. DMA Channels DMA Channel Number 0 1 2 3 4 5 6 7 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 System Resource Open Parallel port Diskette drive Parallel port (for ECP or EPP) DMA controller Open Open Open 2.5 PCI Configuration Space Map Table 18. PCI Configuration Space Map Bus Number (hex) 00 00 00 00 00 00 00 00 00 00 01 02 02 02 02 02 02 02 02 02 Device Number (hex) 00 01 1E 1F 1F 1F 1F 1F 1F 1F 00 00 00 00 08 09 0A 0B 0C 0D Function Number (hex) 00 00 00 00 01 02 03 04 05 06 00 01 02 03 00 00 00 00 00 00 Notes: 1. USB 2.0 option only 2. Desktop Board D850EMV2 only Description Memory controller of Intel 82850E component PCI to AGP bridge Hub link to PCI bridge Intel 82801BA ICH2 PCI to LPC bridge IDE controller USB SMBus controller USB AC '97 audio controller (optional) AC '97 modem controller (optional) Add-in AGP adapter card OHCI controller 1 (Note 1) OHCI controller 2 (Note 1) EHCI controller (Note 1) LAN controller (optional) PCI bus connector 1 PCI bus connector 2 PCI bus connector 3 PCI bus connector 4 (Note 2) PCI bus connector 5 (Note 2) 49

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Technical Reference
49
2.4 DMA Channels
Table 17.
DMA Channels
DMA Channel Number
Data Width
System Resource
0
8 or 16 bits
Open
1
8 or 16 bits
Parallel port
2
8 or 16 bits
Diskette drive
3
8 or 16 bits
Parallel port (for ECP or EPP)
4
8 or 16 bits
DMA controller
5
16 bits
Open
6
16 bits
Open
7
16 bits
Open
2.5 PCI Configuration Space Map
Table 18.
PCI Configuration Space Map
Bus
Number (hex)
Device
Number (hex)
Function
Number (hex)
Description
00
00
00
Memory controller of Intel 82850E component
00
01
00
PCI to AGP bridge
00
1E
00
Hub link to PCI bridge
00
1F
00
Intel 82801BA ICH2 PCI to LPC bridge
00
1F
01
IDE controller
00
1F
02
USB
00
1F
03
SMBus controller
00
1F
04
USB
00
1F
05
AC
97 audio controller (optional)
00
1F
06
AC
97 modem controller (optional)
01
00
00
Add-in AGP adapter card
02
00
01
OHCI controller 1
(Note 1)
02
00
02
OHCI controller 2
(Note 1)
02
00
03
EHCI controller
(Note 1)
02
08
00
LAN controller (optional)
02
09
00
PCI bus connector 1
02
0A
00
PCI bus connector 2
02
0B
00
PCI bus connector 3
02
0C
00
PCI bus connector 4
(Note 2)
02
0D
00
PCI bus connector 5
(Note 2)
Notes:
1.
USB 2.0 option only
2.
Desktop Board D850EMV2 only