Hakko Electronics Monitouch V Series, Reference Manual

Page: 616 / 746

Chapter 25 Memory Card Mode
25-7
25
S
R
AM
an
d CF
Ca
rd
Ar
e
a
SRAM and CF Card Area
SRAM or SRAM Cassette
♦
Memory Capacity
•
The built-in SRAM area of the V7 series is 32 k words (64 kbytes).
•
When an SRAM cassette is mounted on V7 or V6, an SRAM area of 256 k
words (512 kbytes) is secured.
•
The SRAM area of V609E equipped with built-in SRAM is 4 k words
(8 kbytes).
The memory capacity of the SRAM area is shown below.
With SRAM, some words are used for header information. In addition, header
information is attached to each area. The area that is used in memory card
mode is the memory card emulation area. It is not necessary to consider the
capacity required for header information for the area where no data is stored.
For more information on the memory capacity, refer to “Chapter 24 SRAM.”
♦
Lifetime
The service life of the SRAM area depends on the battery life. A battery lasts for
about five years. To check whether the battery voltage is lowered or not, check
system memory address $s167.
SRAM area
Header area (128 words)
Header area (1024 words)
Memory card emulation area
Header area (16 words)
Memo pad storage area
Header area (32 words)
Non-volatile word memory area
$L
Header area (32 words)
Non-volatile double-word memory area
$LD
V7 built in: 32 k words
SRAM cassette: 256 k words
V609E: 4 k words
: Available with memory
manager function
data logging function
For the area
map, refer to
page 25-9.
1: FROM 2 Mbyte (V6)
2: FROM 4 Mbyte (V6)
3: SRAM 512 kbyte (V6/V7)
4: FROM 8 Mbyte (V7)
Memory cassette information reserved
(Set: 0)
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
0 0 0 0 0 0 0 0 0 0 0
MSB LSB
Memory cassette information reserved
(Set: 0)
$s167
0: Battery normal
1: Battery voltage drop
2: Battery not mounted