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32 Hardware Reference Manual
Intel
®
IXP2800 Network Processor
Technical Description
2.2.2.7 Address Map
Figure 3 shows the partitioning of the Intel XScale
®
core microarchitecture 4-Gbyte address space.
Figure 3. Intel XScale
®
Core 4-GB (32-Bit) Address Space
A9693-02
0X0000 0000
DRAM
and
Intel
XScale
®
Core
FLASH ROM
(2 Gb)
SRAM
(1 Gb)
Other
(1/2 Gb)
PCI MEM
(1/2 Gb)
0X7FFF FFFF
0x8000 0000
0XDF00 0000
0XDE00 0000
0XDC00 0000
0XDA00 0000
0XD800 0000
0XD600 0000
0XD000 0000
0XCE00 0000
0XCC00 0000
0XCA00 0000
0XC800 0000
0XC200 0000
0XC000 0000
0XC400 0000
3.5 Gb
3.0 Gb
0XBFFF FFF
0XC000 0000
0XDFFF FFF
0XFFFF FFF
0XE000 0000
PCI Config Regs
PCI Local CSRs
PCI Spec/IACK
PCI CFG (32 Mb)
DRAM CSR (32 Mb)
SRAM Ring (32 Mb)
SRAM CSR & Queue
Scratch (32 Mb)
MSF (32 Mb)
Intel XScale
®
Core CSR
PCI I/O (32 Mb)
RESERVED
(32 Mb x 2)
FLASH ROM
(64 Mb)
RESERVED
CAP-CSRs (32 Mb)