TS32M~1GCF80
80X CompactFlash Card
-IORD
(PC Card Memory Mode)
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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 CompactFlash Storage Card when the card is configured to use
the I/O interface.
-IORD
(PC Card I/O Mode)
In True IDE Mode, this signal has the same function as in PC Card I/O Mode.
This signal is not used in this mode.
-IORD
(True IDE Mode )
-IOWR
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(PC Card Memory Mode)
-IOWR
The I/O Write strobe pulse is used to clock I/O data on the Card Data bus into
the CompactFlash Storage Card controller registers when the CompactFlash
Storage Card is configured to use the I/O interface.
(PC Card I/O Mode)
The clocking shall occur on the negative to positive edge of the signal (trailing
edge).
-IOWR
In True IDE Mode, this signal has the same function as in PC Card I/O Mode.
(True IDE Mode)
Signal Name
Dir.
I
Pin
Description
-OE
(PC Card Memory Mode)
This is an Output Enable strobe generated by the host interface. It is used to
read data from the CompactFlash Storage Card in Memory Mode and to read
the CIS and configuration registers.
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In PC Card I/O Mode, this signal is used to read the CIS and configuration
registers.
-OE
(PC Card I/O Mode)
-ATA SEL
(True IDE Mode)
To enable True IDE Mode this input should be grounded by the host.
READY
(PC Card Memory Mode)
In Memory Mode, this signal is set high when the CompactFlash Storage Card
is ready to accept a new data transfer operation and is held low when the card is
busy.
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At power up and at Reset, the READY signal is held low (busy) until the
CompactFlash Storage Card has completed its power up or reset function. No
access of any type should be made to the CompactFlash Storage Card during
this time.
Note, however, that when a card is powered up and used with RESET
continuously disconnected or asserted, the Reset function of the RESET pin is
disabled. Consequently, the continuous assertion of RESET from the
application of power shall not cause the READY signal to remain continuously in
the busy state.
-IREQ
(PC Card I/O Mode)
I/O Operation – After the CompactFlash Storage Card Card has been
configured for I/O operation, this signal is used as -Interrupt Request. This line is
strobed low to generate a pulse mode interrupt or held low for a level mode
interrupt.
INTRQ
(True IDE Mode)
In True IDE Mode signal is the active high Interrupt Request to the host.
Transcend Information Inc.
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TRANSCEND [ TRANSCEND INFORMATION. INC. ]
