VMEPROM
SYS68K/CPU-30 R4 Technical Reference Manual
Page 130
5.4.4
Default
Memory Usage
of VMEPROM
By default, VMEPROM uses the following memory assignment for the
CPU board:
NOTE: The size of the first task cannot be extended beyond the highest
on-board memory address. If more memory is available (on VMEbus), it
can only be used for data storage, but not for tasking memory.
5.4.5
Default ROM
Usage of
VMEPROM
The following table shows the usage of the System Flash Memory when
it contains VMEPROM. Note that only the first 512 Kbytes will be used
by VMEPROM, all remaining space is available for user applications.
Table 44: Main Memory Layout
Start Address
End Address
Type
0000.0000
16
0000.03FF
16
Vector Table
0000.0400
16
0000.0FFF
16
System Configuration Data
0000.1000
16
0000.5FFF
16
SYRAM
0000.6000
16
0000.6FFF
16
VMEPROM internal use
0000.7000
16
0000.7FFF
16
Task Control Block 0
0000.8000
16
........
User Memory of Task 0
........
........
Mail Array
........
........
RAM Disk (optional)
........
End of local memory
Hashing buffers for Disk I/O
Table 45: Layout of System Flash Memory
Start Address
End Address
Type
FF00.0000
16
FF00.0003
16
Initial Supervisor Stackpointer
FF00.0004
16
FF00.0007
16
Initial Program Counter
FF00.0008
16
FF00.000B
16
Pointer to VMEPROM Initialization
FF00.000C
16
FF00.000F
16
Pointer to User Alterable Locations
FF00.0010
16
........
Pointer to VMEPROM Shell
(Initial Program Counter)
........
BIOS Modules,
Kernel,
File Manager
........
........
ROM resident installable devices and tables
(Pointer to Initialization)
........
VMEPROM Initialization Code
(Ptr to alterable Locations)
........
User Alterable Memory Locations
........
........
System Tools
i
Содержание SYS68K/CPU-30 R4
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Страница 145: ...VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 132...
Страница 189: ...Appendix to VMEPROM SYS68K CPU 30 R4 Technical Reference Manual Page 176...