Product specifications

FILE ALLOCATION
Sharp Electronics Corporation
Section-1: Overview
File Allocation also known as memory file allocation and 970 programming, is used to
reserve areas of memory for data storage.
The concept of file allocation is similar to partitioning a hard disk drive. Instead of disk
space, you are working with areas of memory. File allocation allows for dividing and
dedicating memory space for the files to store its data.
File allocation uses File Groups to reserve areas of memory for data storage. During file
allocation, file groups work much like a batch file or command does in an operating system
or software program. A single File Group may reserve areas of memory for a single file
table or multiple dependent or related file tables.
The UP-820N and UP-810F/820F Memory:
UP-800
MRS Values
HEX
Start address A7E82000
Used address A7F04E82
End address A7FFFFFF
Options:
UP-S04MB2 (4MB) – 2 chips
Start address A7E82000
Used address A7F04E82
End address A83FFFFF
UP-S08MB (8MB) – 4 chips
Start address A7E82000
Used address A7F04E82
End address A87FFFFF
Memory Allocation program settings may be printed on the report and journal printer or
displayed on the operator display.
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