8 dividing memory [divide memory, Dividing memory, Auto – IDK MSD-54 Series User Manual
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MSD-54 SERIES User’s Guide
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8.16.8 Dividing memory [DIVIDE MEMORY]
You can register up to four bitmaps within the available memory area by dividing the memory. You can select
one of three dividing modes or specify the size you want to divide manually.
Memory areas are controlled by blocks. 1 block = 65,536 bytes; 128 blocks = 8,388,608 bytes in total.
3M Byte
registered
[“AUTO”]
Before divide
The occupied area is not changed. The free
area is divided into two halves.
6M Byte
After divide
6M Byte
1M Byte
Into three
sections
[“RESIZE”]
Before divide
If no bitmap is registered, the memory is
divided equally.
8M Byte
After divide
2M Byte
Into four
sections
equally
Before divide
If a bitmap is registered, the rest memory
area is divided equally
After divide
Into four
sections
equally
3M Byte
registered
Free space
1M Byte
2M Byte
2M Byte
2M Byte
3M Byte
registered
1.7M Byte
1.7M Byte
1.6M Byte
[“DELETE”]
Before divide
The memory area is divided equally
regardless of whether bitmap is registered or
not.
8M Byte
After divide
2M Byte
Into four
sections
equally
Before divide
If after-divide size of area in which bitmap is
registered is smaller than before-divide size,
the registered bitmap is deleted.
After divide
Into four
sections
equally
2M Byte
2M Byte
2M Byte
2M Byte
2M Byte
2M Byte
2M Byte
Before divide
If after-divide size of area in which bitmap is
registered is larger than before-divide size,
the registered bitmap is not deleted.
After divide
Into two
sections
4M Byte
8M Byte
3M Byte
registered
8M Byte
3M Byte
registered
8M Byte
1
1
2
3
1
1
1
2
3
4
1
2
3
4
1
1
1
1
2
3
4
1
2
3
4
1
2
3M Byte
registered
Before divide
The start position of the area in which bitmap
is registered is not changed. The area just
before the registered bitmap is not resized.
After divide
Into three
sections
1
1
2
3M Byte
registered
2
2M Byte
registered
2M Byte
registered
2M Byte
3
Before divide
If a bitmap is registered, the area is kept
and the rest memory area is divided equally.
After divide
Into four
sections
1.7M Byte
1.7M Byte
1.6M Byte
5M Byte
If the number of sections will be smaller, the
registered bitmap may be deleted.
Into two
sections
After divide
4M Byte
Before divide
2M Byte
registered
2M Byte
2MByte
2M Byte
registered
2MByte
2M Byte
registered
2M Byte
registered
2M Byte
registered
1M Byte
1M Byte
4
3
2
1
1
2
1
2
1
2
3
[Figure 8.69] Dividing memory area