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Pin Num
PC Card Memory Mode
PC Card I/O Mode
True IDE Mode
(4)
Signal
Name
Pin
Type
In, Out
Type
Signal
Name
Pin
Type
In, Out
Type
Signal
Name
Pin
Type
In, Out
Type
40
41
-VS2
RESET
O
I
OPEN
I2Z
-VS2
RESET
O
I
OPEN
I2Z
-VS2
-RESET
O
I
OPEN
I2Z
IORDY
(7)
42
-WAIT
O
OT1
-WAIT
O
OT1
-DDMARDY
(8)
O
ON1
DSTROBE
(9)
43
-INPACK
O
OT1
-INPACK
O
OT1
DMARQ
O
OZ1
44
-REG
I
I3U
-REG
I
I3U
-DMACK
(6)
I
I3U
45
46
BVD2
BVD1
I/O
I/O
I1U,OT1
I1U,OT1
-SPKR
-STSCHG
I/O
I/O
I1U,OT1
I1U,OT1
-DASP
-PDIAG
I/O
I/O
I1U,ON1
I1U,ON1
47
D08
(1)
I/O
I1Z,OZ3
D08
(1)
I/O
I1Z,OZ3
D08
(1)
I/O
I1Z,OZ3
48
D09
(1)
I/O
I1Z,OZ3
D09
(1)
I/O
I1Z,OZ3
D09
(1)
I/O
I1Z,OZ3
D10
D10
D10
49
(1)
I/O
I1Z,OZ3
(1)
I/O
I1Z,OZ3
(1)
I/O
I1Z,OZ3
50
GND
Ground
GND
Ground
GND
Ground
1.
2.
3.
4.
5.
6.
7.
8.
9.
These signals are required only for 16 bit accesses and not required when installed in 8 bit systems.
Devices should allow for 3-state signals not to consume current.
The signal should be grounded by the host.
The signal should be tied to VCC by the host.
The mode is required for CompactFlash Storage Cards.
The – CSEL signal is ignored by the card in PC Card modes. However, because it is not pulled up on the card
in these modes, it should not be left floating by the host in PC Card modes. In these modes, the pin
should be connected by the host to PC Card A25 or grounded by the host.
If DMA operations are not used, the signal must be held high or tied to VCC by the host, also for read
registers.
Signal usage in True IDE Mode except when Ultra DMA mode protocol is active.
Signal usage in True IDE Mode when Ultra DMA mode protocol DMA Write is active.
Signal usage in True IDE Mode when Ultra DMA mode protocol DMA Read is active. The signal should be
grounded by the host.
Swissbit AG
Industriestrasse 4
Swissbit reserves the right to change products or specifications without notice.
Revision: 1.51
CH-9552 Bronschhofen
Switzerland
www.swissbit.com
industrial@swissbit.com
C-300_data_sheet_CF-HxBK_Rev151.doc
Page 14 of 99
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