System Dma Specifications; System Memory Map Specifications - HP ProBook 6545b Maintenance And Service Manual

System DMA specifications

Hardware
DMA0
DMA1*
DMA2*
DMA3
DMA4
DMA5*
DMA6
DMA7
*ExpressCard controller can use DMA 1, 2, or 5.

System memory map specifications

Size
640 KB
128 KB
64 KB
64 KB
Maintenance and Service Guide
DMA system function
Not applicable
Not applicable
Not applicable
Not applicable
Direct memory access controller
Not applicable
Not assigned
Not assigned
Memory address
00000000–0009FFFF
000A0000–000BFFFF
000C0000–000CFFFF
000E8000–000FFFFF
00100000–XFFFFFFF
(X+1)0000000–FEDFFFFF
FED00000–FED003FF
FEE01000–FFFFFFFF
Specifications
System function
Base memory
Video memory
Video BIOS
System BIOS
Extended memory (based on
memory installed)
PCI bus
High-precision event timer
PCI bus
6–7