Revision 1.15 – August 30, 2007
440GX – Power PC 440GX Embedded Processor
Data Sheet
System Memory Address Map (Sheet 2 of 2)
Function
Sub Function
Start Address
2 0000 0000
2 0800 0000
2 0C00 0000
2 0EC0 0000
2 0EC0 0008
2 0EC8 0000
2 0EC8 0100
2 0ED0 0000
2 0EE0 0000
End Address
2 07FF FFFF
2 0BFF FFFF
2 0EBF FFFF
2 0EC0 0007
2 0EC7 FFFF
2 0EC8 00FF
2 0EC8 00FF
2 0EDF FFFF
F FFFF FFFF
Size
64MB
8B
Reserved
PCI-X I/O
Reserved
PCI-X External Configuration Registers
Reserved
PCI-X
PCI-X Bridge Core Configuration Registers
Reserved
256B
PCI-X Special Cycle
1MB
PCI-X Memory
55.76 GB
Notes:
1. DDR SDRAM and on-chip SRAM can be located anywhere in the Local Memory area of the memory map.
2. The Boot ROM and Expansion ROM areas of the memory map are intended for use by ROM or Flash-type devices. While locating
volatile DDR SDRAM and SRAM in this region is supported, use of these regions for this purpose is not recommended.
3. When the optional boot from PCI-X memory is selected, the PCI-X Boot ROM address space begins at 2 FFFE 0000 (128 KB).
8
AMCC
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
