Revision 1.23 - January 28, 2009
PPC405EX – PowerPC 405EX Embedded Processor
Address Maps
Data Sheet
The PPC405EX incorporates two address maps. The first address map defines the possible use of addressable
memory regions that the processor can access. The second address map defines Device Configuration Register
(DCR) addresses (numbers). The DCRs are accessed by software running on the PPC405EX processor through
the use of mtdcr and mfdcr instructions.
Table 1. System Memory Address Map (4GB System Memory)
Function
Local Memory
Subfunction
DDR 1/2 SDRAM
Start Address (Hex)
0 0000 0000
0 8000 0000
0 9000 0000
0 EF60 0000
0 EF60 0200
0 EF60 0208
0 EF60 0300
0 EF60 0308
0 EF60 0400
0 EF60 0420
0 EF60 0500
0 EF60 0520
0 EF60 0600
0 EF60 0606
0 EF60 0700
0 EF60 0740
0 EF60 0800
0 EF60 0880
0 EF60 0900
0 EF60 0A00
0 EF60 0B00
0 EF60 0C04
0 EF61 0000
0 EF62 0000
0 EF62 0100
0 EF6C 0000
0 EF70 0000
0 EF78 0000
0 F000 0000
0 FFE0 0000
End Address (Hex)
0 7FFF FFFF
0 8FFF FFFF
0 EF5F FFFF
0 EF60 01FF
0 EF60 0207
0 EF60 02FF
0 EF60 0307
0 EF60 03FF
0 EF60 041F
0 EF60 04FF
0 EF60 051F
0 EF60 05FF
0 EF60 0605
0 EF60 06FF
0 EF60 073F
0 EF60 07FF
0 EF60 087F
0 EF60 08FF
0 EF60 09FF
0 EF60 0AFF
0 EF60 0C03
0 EF60 FFFF
0 EF61 FFFF
0 EF62 00FF
0 EF6B FFFF
0 EF6F FFFF
0 EF77 FFFF
0 EFFF FFFF
0 FFDF FFFF
0 FFFF FFFF
Size
2GB
EBC
256MB
1.6GB
512B
8B
PCI Express
GPT
UART 0
Reserved
UART 1
248B
8B
Reserved
IIC 0
248B
32B
Reserved
IIC 1
224B
32B
Reserved
SCP
224B
6B
OPB Peripherals
Reserved
OPB Arbiter
Reserved
GPIO
250B
64B
192B
128B
128B
256B
256B
260B
62KB
64KB
256B
640KB
256KB
512KB
8.9MB
254MB
2MB
Reserved
Ethernet 0
Ethernet 1
RGMII Bridge
Reserved
PKA +TRNG
PCI Express Interrupt Handler
Reserved
USB OTG
Security
PLB/AHB Peripherals
Reserved
EBC Memory
EBC Memory—Boot ROM
EBC
Notes:
1. If peripheral bus boot is selected, peripheral bank 0 is automatically configured at reset to the address range listed above.
2. After the boot process, software may reassign the boot memory regions for other uses.
3. PCI Express can use PLB address range 0x1 0000 0000 to 0xF FFFF FFFF even though the CPU can not access it.
AMCC Proprietary
7
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
