2 electrical description – SanDisk CompactFlash Extreme III User Manual
Page 21
SanDisk CompactFlash Card OEM Product Manual
Interface Description
Table 3-3
True IDE Mode Pin Assignments
Pin
No.
Signal
Name
Pin Type
I/O Type
Pin No.
Signal
Name
Pin Type
I/O Type
9
-ATA SEL
I
I3U
34
-IORD
I
I3Z
10
A09
I
I1Z
35
-IOWR
I
I3Z
11
A08
I
I1Z
36
-WE
I
I3U
12
A07
I
I1Z
37
INTRQ
O
OZ1
13
VCC
–
Power
38
VCC
–
Power
14
A06
I
I1Z
39
-CSEL
I
I2U
15
A05
I
I1Z
40
-VS2
O
OPEN
16
A04
I
I1Z
41
RESET
I
I2Z
17
A03
I
I1Z
42
IORDY
O
OT1
18
A02
I
I1Z
43
-DMARQ
O
OZ1
19
A01
I
I1Z
44
-DMACK
I
I3U
20
A00
I
I1Z
45
-DASP
I/O
I1U,ON1
21
D00
I/O
I1Z,OZ3
46
-PDIAG
I/O
I1U,ON1
22
D01
I/O
I1Z,OZ3
47
D08
I/O
I1Z,OZ3
23
D02
I/O
I1Z,OZ3
48
D09
I/O
I1Z,OZ3
24
-IOCS16
O
ON3
49
D10
I/O
I1Z,OZ3
25
-CD2
O
Ground
50
GND
–
Ground
3.2
Electrical Description
The CompactFlash Memory Card Series is optimized for operation with hosts, which support
the PCMCIA I/O interface standard conforming to the PC Card ATA specification. However,
the card may also be configured to operate in systems that support only the memory interface
standard. The CompactFlash card configuration is controlled using the standard PCMCIA
configuration registers starting at address 200h in the Attribute Memory space of the card.
Table 3-4 describes the I/O signals. Signals whose source is the host are designated as inputs
while signals that the card sources are outputs. SanDisk CompactFlash Memory Card logic
levels conform to those specified in Section 3.3 of the PCMCIA Release 2.1 Specification.
NOTE
: The sleep-to-write and sleep-to-read times are the time it takes the
card to exit sleep mode when any command is issued by the host to
when the card is reading or writing. CompactFlash Memory cards do
not require a reset to exit sleep mode.
© 2007 SanDisk Corporation
3-3
Rev. 12.0, 02/07