W7CF016G1DA-H41PE-01D.A6 View Datasheet(PDF) - Unspecified
Part Name
Description
Manufacturer
W7CF016G1DA-H41PE-01D.A6 Datasheet PDF : 50 Pages
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INDUSTRIAL GRADE CompactFlashTM Card
W7CFxxxA-H4 Series RoHS 6/6 Compliant
256MB – 32GB
-INPACK
(PC Card Memory Mode)
-INPACK
(PC Card I/O Mode)
Input Acknowledge
DMARQ
(True IDE Mode)
O
43
-IORD
(PC Card Memory Mode)
-IORD
(PC Card I/O Mode)
I
34
-IORD
(True IDE Mode)
This signal is not used in this mode.
The Input Acknowledge signal is asserted by the Compact
Flash Card when the card is selected and responding to an I/O
read cycle at the address that is on the address bus. This
signal is used by the host to control the enable of any input
data buffers between the card and the CPU.
This signal is a DMA Request that is used for DMA data
transfers between host and device. It shall be asserted by the
device when it is ready to transfer data to or from the host.
For Multiword DMA transfers, the direction of data transfer
is controlled by DIOR- and DIOW-.This signal is used in a
handshake manner with DMACK- before negating
DMAREQ, and reasserting DMAREQ if there is more data to
transfer.
DMAREQ shall not be driven when the device is not
selected.
While a DMA operation is in progress, -CS0 and –CS1 shall
be held negated and the width of the transfers shall be 16 bits.
If there is no hardware support for DMA mode in the host,
this output signal is not used and should not be connected at
the host .In this case, the BIOS must report that DMA mode
is not supported by the host so that the device driver will not
attempt DMA mode.
A host that does not support DMA mode and implements
both PCMCIA and true-IDE modes of operation need not
alter the PCMICIA mode connections while in True-IED
mode as long as this does not prevent proper operation in any
mode.
This signal is not used in this mode.
This is an I/O Read strobe generated by the host. This signal
gates I/O data onto the bus from the Compact Flash Card
when the card is configured to use the I/O interface.
In True IDE Mode, this signal has the same function as in PC
Card I/O Mode.
Wintec W7CFxxx-H4 and W8CFxxx-H4 Series Datasheet v1 08.doc
August 2013 Wintec Industries, Inc.
11
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