Datasheet

SLCFxxxM2TU(I)(-x) CompactFlash Card
Datasheet
61000-07000-106, May 2011 11
Signal Name
Type
Pin
Number
Description
-IORD
(PC Card Memory Mode
except UDMA protocol
active)
-HDMARDY
(All Modes: UDMA protocol
DMA Read)
HSTROBE
(All Modes: UDMA protocol
DMA Write)
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This signal is not used in this mode.
In all modes when UDMA mode DMA Read is active, this
signal is asserted by the host to indicate that the host is
ready to receive UDMA data-in bursts. The host may negate
-HDMARDY to pause an UDMA transfer
In all modes when UDMA mode DMA Write is active, this
signal is the data out strobe generated by the host. Both the
rising and falling edge of HSTROBE cause data to be latched
by the device. The host may stop generating HSTROBE
edges to pause an UDMA data-out burst.
-IORD
(PC Card I/O Mode except
UDMA protocol active)
-HDMARDY
(All Modes: UDMA protocol
DMA Read)
HSTROBE
(All Modes: UDMA protocol
DMA Write)
This is an I/O Read strobe generated by the host. This signal
gates I/O data onto the bus from the CF Card.
Same as -HDMARDY above.
Same as HSTROBE above.
-IORD
(TrueIDE Mode except
UDMA protocol active)
-HDMARDY
(All Modes: UDMA protocol
DMA Read)
HSTROBE
(All Modes: UDMA protocol
DMA Write)
In TrueIDE Mode, this signal has the same function as in PC
Card I/O Mode.
Same as -HDMARDY above.
Same as HSTROBE above.
-WE
(PC Card Memory Mode)
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This is a signal driven by the host and used for strobing
memory write data into the registers. It is also used for writing
the configuration registers.
-WE
(PC Card I/O Mode)
In PC Card I/O Mode, this signal is used for writing the
configuration registers.
-WE
(TrueIDE Mode)
In TrueIDE Mode, this input signal is not used and should be
connected to VCC.
-OE
(PC Card Memory Mode)
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9
This is an Output Enable strobe generated by the host
interface. It is used to read data from the CF Card in PC Card
Memory Mode and to read the CIS and configuration
registers.
-OE
(PC Card I/O Mode)
In PC Card I/O Mode, this signal is used to read the CIS and
configuration registers.
-ATASEL
(TrueIDE Mode)
To enable TrueIDE Mode, this input should be grounded by
the host.