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1.7.3
Capacity Specifications
The capacity specifications for the SDP5A
FlashDisk are different from the
specifications of the CompactFlash Memory Card.
The tables below show the capacity specifications
Model Number
Capacity
(formatted)
SDP5A-5
5,242,880 bytes
SDP5A-10
10,485,760 bytes
SDP5A-20
20,971,520 bytes
SDP5A-40
41,943,040 bytes
SDP5A-110
110,100,480 bytes
SDP5A-175
175,374,336 bytes
Model Number
Capacity
(formatted)
SDCFB-2
2,015,232 bytes
SDCFB-4
4,030,464 bytes
SDCFB-6
6,029,312 bytes
SDCFB-8
8,028,160 bytes
SDCFB-10
10,485,760 bytes
SDCFB-15
15,007,744 bytes
SDCFB-20
20,054,016 bytes
SDCFB-24
24,051,712 bytes
SDCFB-30
30,081,024 bytes
SDCFB-40
40,108,032 bytes
SDCFB-48
48,103,424 bytes
1.7.4
Voltage Sense Signal -VS1
The Voltage Sense Signal -VS1, pin 43, of the
CompactFlash Memory Card is grounded because
the Card Information Structure (CIS) can be read
at 3.3 volts. In the earlier SDP5A FlashDisk, this
pin is not grounded because the SDP5A FlashDisk
CIS can only be read at 5 volts.
Note:
In some early platforms, the -VS1 pin (pin 43) is
also the Refresh pin for DRAM cards. Plugging
the CompactFlash Memory Card into a platform
supporting the Refresh pin will hang the bus.
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION
CompactFlash Memory Card Product Manual
of the SDP5A FlashDisk and the CompactFlash
capacity
Memory Card.
Note:
SanDisk defines a megabyte as one million
bytes.
Sectors/Card
No. of
(Max LBA+1)
Heads
10,240
2
20,480
2
40,960
2
81,920
4
215,040
8
342,528
12
Sectors/Card
No. of
(Max LBA+1)
Heads
3936
2
7872
2
11,776
2
15,680
2
20,480
2
29,312
2
39,168
2
46,976
2
58,752
6
78,336
4
93,952
4
1.7.5
True IDE Mode
The CompactFlash Memory Card differs from the
SDP5A FlashDisk in that it can be configured in
True IDE Mode. See section 4.6 True IDE Mode I/O
Transfer Function.
No. of
No. of
S e c t o r s /
Cylinders
Track
32
160
32
320
32
640
32
640
32
840
32
892
No. of
No. of
S e c t o r s /
Cylinders
Track
16
123
32
123
32
184
32
245
32
320
32
458
32
612
32
734
32
306
32
612
32
734
11
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