Hakko Electronics Monitouch V Series, Справочное руководство

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Chapter 24 SRAM
24-4
♦
Calculation of Size
In SRAM, a certain number of words are always used for “header information.”
Also, the “header information by function” is saved.
•
Calculation of Size (words)
= 128 + (A + 1024) + (B + 16) + (C + 32) + (D + 32)
Ex. 1: When setting the following:
A [Memory Card Emulation Area: 40000]
B [Store Area for Memo Pad: 20000]
C [Nonvolatility Memory (Word): 40000]
D [Nonvolatility Memory (DWord): 40000]
128 + (1024 + 40000) + (16 + 20000) + (32 + 40000) + (32 + 40000) =
141232
141232
≤
262144 (256 k words)
141,232 words are used in SRAM. The rest can be supported by a
SRAM cassette.
Ex. 2: When setting the following:
A [Memory Card Emulation Area: 244448]
C [Nonvolatility Memory (Word): 16512]
128 + (1024 + 244448) + (32 + 16512) = 262144
262016
≤
262144 (256 k words)
262,016 words are used in SRAM. The rest can be supported by a
SRAM cassette.
SRAM Area Header Area (128 words)
Header Area (1024 words)
A Memory Card Emulation Area
Header Area (16 words)
B Storage Area for Memo Pad
Header Area (32 words)
C
Non-volatile Word Memory Area
$L
Header Area (32 words)
D
Non-volatile Double Word Memory Area
$LD
You do not need to count the capacity of the header information of the area
which you do not select.
Depending on how you use the memory card emulation area, the calculation of the area
size varies. For more information, refer to “Chapter 25 Memory Card Mode.”