1-4
BajaPPC-750: Overview
1.3 Physical Memory Map
The physical memory map of the BajaPPC-750 is depicted in Fig. 1-2. Informa-
tion on particular portions of the memory map can be found in later sections of
this manual. See Table 1-1 for a list of these references.
Figure 1-2. Physical Memory Map
Hex
Address
SDRAM
Reserved
0000,0000
4000,0000
FD00,0000
FE00,0000
8000,0000
FE80,0000
PCI Memory Space
PCI/ISA Memory Space
(16 MB)
PCI/ISA I/O Space
(64 KB)
PCI I/O Space (4 MB)
64-bit Wide Flash
(8 MB)
Config. Address Register
FF00,0000
Config. Data Register
PCI Interrupt Ack.
FEC0,0000
FEE0,0000
FEF0,0000
Flash/PLD Registers
RTC/NVRAM
FF80,0000
FFFF,FFFF
FF80,0000
Boot EPROM Socket
PLD Registers
FF90,0000
FF98,0000
FF9A,0000
User Flash, Pages 17
Flash, Page 0
FF88,0000
Interrupt Controller
FF9C,0000
RTC/NVRAM
Reserved
FFA0,0000
FFFF,FFFF
Hex
Address
The BajaPPC-750 Monitor uses the area between
0000,0000 and 0003,0000 for the stack and
uninitialized data. Any writes to this area can
cause the monitor to operate unpredictably.
FF9E,0000
Clear NMI
Содержание BajaPPC-750
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