Revision 1.19 – June 17, 2009
460EX – PPC460EX Embedded Processor
Preliminary Data Sheet
Table 1. System Memory Address Map (Part 3 of 3)
Function
Sub Function
PCI Express Memory
Start Address
End Address
Size
128MB
64KB
0000 000C 0000 0000
0000 000C 0800 0000
0000 000C 0801 0000
0000 000C 0880 0000
0000 000C 0C00 0000
0000 000C 0EC0 0000
0000 000C 0EC0 0008
0000 000C 0EC8 0000
0000 000C 0EC8 1200
0000 000C 0ED0 0000
0000 000C 0ED0 0004
0000 000C 1000 0000
0000 000C 1000 0100
0000 000C FF00 0000
0000 000D 0000 0000
0000 0010 0000 0000
0400 0000 0000 0000
1000 0000 0000 0000
2000 0000 0000 0000
0000 000C 07FF FFFF
0000 000C 0800 FFFF
0000 000C 087F FFFF
0000 000C 0BFF FFFF
0000 000C 0EBF FFFF
0000 000C 0EC0 0007
0000 000C 0EC7 FFFF
0000 000C 0EC8 11FF
0000 000C 0ECF FFFF
0000 000C 0ED0 0003
0000 000C 0FFF FFFF
0000 000C 1000 00FF
0000 000C FEFF FFFF
0000 000C FFFF FFFF
0000 000F FFFF FFFF
03FF FFFF FFFF FFFF
0FFF FFFF FFFF FFFF
1FFF FFFF FFFF FFFF
FFFF FFFF FFFF FFFF
PCI I/O
PC Express Memory
PCI Extra I/O
~8MB
~56MB
~44MB
8B
PCI Express Memory
PCI Configuration Registers
Reserved
~512KB
4.75KB
~512KB
4B
PCI/PCIE Space (HB)
PCI Local Registers
Reserved
PCI Special Cycle
Reserved
~19MB
256B
PCI Express Interrupt Handler
PCI, PCI Express Memory
PCI Boot ROM (PCI Memory)
PCI, PCI Express Memory
~3.8MB
16MB
12GB
4
Reserved
5
Reserved
XOR Space (HB)
PCI/PCIE Space (HB)
Notes:
XOR
PCI, PCI Express Memory
1. DDR SDRAM, SRAM (L2 Cache) and On-Chip Memory (OCM) can be located anywhere in the Local Memory area of the memory
map.
2. The Boot ROM area 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 Memory is selected, the PCI Boot ROM address space begins at 0000 000C FF00 0000 (16 MB).
4. Never decoded.
5. Unpredictable results on Read and Write operations.
6. Accessed by means of EBC Peripheral Bank Configuration Registers.
AMCC Proprietary
9
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