
Device Mapping
Device Mapping
Digital PRIORIS XL Server
Digital PRIORIS XL Server
84
84
MCS Logistics Engineering - Nijmegen
MCS Logistics Engineering - Nijmegen
P
R
I
O
R
I
S
X
L
Computer Interrupt Levels
Interrupt Number
Interrupt Source
IRQ1
Keyboard controller
IRQ3
COM2 (if enabled)
IRQ4
COM1 (if enabled)
IRQ6
Diskette drive (if enabled)
IRQ7
LPT1, LPT2, LPT3 (if enabled)
IRQ12
Mouse interrupt
IRQ13
Math co-processor
IRQ14
Hard disk drive (if enabled)
DMA Channel Assignment
Channel
Controller
Function
0
1
Refresh
1
1
Not used
2
1
Diskette controller (if enabled)
3
1
Not used
4
2
Cascade DMA
5
2
Not used
6
2
Not used
7
2
Not used
PCI Configure Space Address Map
Range (hexadecimal)
Function
C0xx
CPU bridge
C1xx
Onboard PCI SCSI (if applicable)
(1)
C2xx
EISA/ISA bridge
C6xx
PCI slot 1
C7xx
PCI slot 2
C8xx
PCI slot 3
(1)
For Prioris HX servers: PCI-to-PCI bridge (PCI slots 4, 5, 6)