
Memory Modes
4-4
4.3
Description of Memory Mode
4.3.1
Memory Extension Mode
The memory mode which comprises a system from both internal and external memory is called memory extension
mode. This mode enables configuration of a system where the program and data make the best use of the high-
speed performance of internal memory and the large capacity of external memory. This mode is useful when the
program sizes exceed the maximum internal capacity or when locating instructions externally due to facilitate
program revisions.
Memory extension mode has memory space of up to 3 GB from addresses x'00000000 to x'BFFFFFFF. Addresses
x'00000000 to x'1FFFFFFF are the internal data space (up to 512 MB) which contains data, addresses x'20000000
to x'3FFFFFFF are the internal I/O space (up to 512 MB) which is assigned to the I/O ports and control registers,
addresses x'40000000 to x'7FFFFFFF are the internal instruction space which contains instructions and table data,
and addresses x'80000000 to x'BFFFFFFF are the external memory space (up to 1 GB).
The MN103001G has 128 Kbytes of internal instruction ROM located at x'40000000 to x'4001FFFF. The
MN103001G also has 8 Kbytes of internal data RAM located at x'00000000 to x'00001FFF.
The MN1030F01K has 256 Kbytes of internal flash memory located at x'40000000 to x'4002FFFF. The
MN1030F01K also has 8 Kbytes of internal data RAM located at x'00000000 to x'00001FFF.
Note that it is prohibited to access unmounted space of the internal data space, the internal I/O space and the
internal instruction space. When accessing the unmounted space, the operation is not assured.
Fig. 4-3-1 Memory Space in Extension Memory Mode
System reserve
region
4 GB
Internal data
memory (~512 MB)
Internal I/O
(~512 MB)
Internal instruction
memory (~1 GB)
x'00000000
x'20000000
x'80000000
x'FFFFFFFF
x'BFFFFFFF
x'40000000
External memory
(~1 GB)
Summary of Contents for MN103001G/F01K
Page 1: ...MICROCOMPUTER MN1030 MN103001G F01K LSI User s Manual Pub No 23101 050E ...
Page 2: ......
Page 4: ......
Page 6: ......
Page 8: ......
Page 9: ...Table of Contents List of Figures and Tables 0 ...
Page 26: ...xviii ...
Page 27: ...1 0 1 General Specifications ...
Page 35: ...2 CPU 2 ...
Page 57: ...3 Extension Instruction Specifications 3 ...
Page 96: ...Extension Instruction Specifications 3 40 ...
Page 97: ...4 Memory Modes 3 4 ...
Page 102: ...Memory Modes 4 6 ...
Page 103: ...5 Operating Mode 5 ...
Page 107: ...6 Clock Generator 6 13 ...
Page 111: ...7 Internal Memory 7 ...
Page 114: ...Internal Memory 7 4 ...
Page 115: ...8 Bus Controller BC 8 ...
Page 189: ...9 Interrupt Controller 9 ...
Page 220: ...Interrupt Controller 9 32 ...
Page 221: ...10 8 bit Timers 9 10 ...
Page 254: ...8 bit Timers 10 34 ...
Page 255: ...11 16 bit Timers 11 ...
Page 292: ...16 bit Timers 11 38 ...
Page 293: ...12 Watchdog Timer 11 12 ...
Page 302: ...Watchdog Timer 12 10 ...
Page 303: ...13 Serial Interface 13 ...
Page 354: ...Serial Interface 13 52 ...
Page 355: ...14 A D Converter 14 ...
Page 367: ...15 I O Ports 15 ...
Page 431: ...16 Internal Flash Memory 16 ...
Page 439: ...17 17 Ordering Mask ROM ...
Page 442: ...Ordering Mask ROM 17 4 ...
Page 443: ...Appendix ...