Instruction Manual

503 Series Industrial Grade CompactFlash Card Product Manual v2.1Cactus Technologies
®
11
PC Card Memory Mode
Pin
Num
Signal
Name
Pin
Type
31
D151
I/O
32
-CE21
I
33
-VS1
O
34
-IORD
I
35
-IOWR
I
36
-WE
I
37
RDY/BSY
O
38
VCC
39
-CSEL
I
40
-VS2
O
41
RESET
I
42
-WAIT
O
43
-INPACK
O
44
-REG
I
45
BVD2
I/O
46
BVD1
I/O
47
D08
1
I/O
48
D09
1
I/O
49
D10
1
I/O
50
GND
PC Card I/O Mode
Pin
Num
Signal
Name
Pin
Type
31
D151
I/O
32
-CE21
I
33
-VS1
O
34
-IORD
I
35
-IOWR
I
36
-WE
I
37
IREQ
O
38
VCC
39
-CSEL
I
40
-VS2
O
41
RESET
I
42
-WAIT
O
43
-INPACK
O
44
-REG
I
45
-SPKR
I/O
46
-STSCHG
I/O
47
D08
1
I/O
48
D09
1
I/O
49
D10
1
I/O
50
GND
True IDE Mode
Pin
Num
Signal
Name
Pin
Type
31
D151
I/O
32
-CS11
I
33
-VS1
O
34
-IORD
HSTROBE
5
-HDMARDY
6
I
35
-IOWR
STOP
7
I
36
-WE
3
I
37
INTRQ
O
38
VCC
39
-CSEL
I
40
-VS2
O
41
-RESET
I
42
IORDY
-DDMARDY
5
DSTROBE
6
O
43
DMARQ
O
44
-DMACK
I
45
-DASP
I/O
46
-PDIAG
I/O
47
D08
1
I/O
48
D09
1
I/O
49
D10
1
I/O
50
GND
NOTE:
1. These signals are required only for 16-bit access and not
required when installed in 8-bit systems. For lowest power
dissipation, leave these signals open.
2. Should be grounded by the host.
3. Should be tied to VCC by the host.
4. Please refer to Section 3.2 for denitions of In, Out type.
5. Signal usage when UDMA write protocol is active.
6. Signal usage when UDMA read protocol is active.
7. Signal usage when UDMA protocol is active.
8. Signal usage when UDMA write protocol is active
9. Signal usage when UDMA read protocol is active
10. Signal usage when UDMA write protocol is active
11. Signal usage when UDMA read protocol is active
12. Signal usage when UDMA protocol is active
13. Signal is totem pole output when UDMA protocol is active
in TrueIDE mode, otherwise it is open drain
14. This pin is used for hardware triggered write protect or
card erase in -503P1 or -503WP1 devices.
The Cactus Technologies Industrial CompactFlash products can be congured to operate in either
I/O mode or memory mode as per the PCMCIA Release 2.1 specication. The conguration of the
CompactFlash cards are controlled using the standard PCMCIA conguration registers starting
at address 200h in the Attribute Memory space of the CompactFlash Memory Card. The Cactus
Technologies Industrial CompactFlash cards also supports a TrueIDE mode. This mode is entered by
grounding the –OE pin on power up.
Table 3-7 describes the I/O signals. Signals whose source is the host are designated as inputs
while signals that the CompactFlash Memory Card sources are outputs. The CompactFlash Card
logic levels conform to those specied in the PCMCIA Release 2.1 Specication. See Section 3.3 for
denitions of Input and Output type.
Signal Description
3.2.