THNCF064MMA Datasheet, PDF (9/47 Pages) Toshiba Semiconductor – The THNCFxxxxMA series CompactFlash card is a flash technology based with ATA interface flash memory card

Signal Name
−WE
(PC Card I/O Mode)
−WE
(True IDE Mode)
WP
(PC Card Memory Mode )
−IOIS16
(PC Card I/O Mode)
−IOIS16
(True IDE Mode)
Preliminary
THNCFxxxxMA Series
Dir
Pin No.
Description
In PC Card I/O Mode, this signal is used for writing the
configuration registers.
In True IDE Mode this input signal is not used and should be
connected to VCC by the host.
Memory Mode-The CompactFlash Storage Card does not have a
write protect switch. This signal is held low after the completion of
the reset initialization sequence.
I/O Operation-When the CompactFlash Storage Card is configured
O
24
for I/O Operation Pin 24 is used for the −I/O Selected is 16 Bit Port
(−IOIS16) function. A Low signal indicates that a 16 bit or odd byte
only operation can be performed at the addressed port.
In True IDE Mode this output signal is asserted low when this
device is expecting a word data transfer cycle.
2002-10-20 9/47