SMC256BFY6E NUMONYX [Numonyx B.V], SMC256BFY6E Datasheet - Page 21

• Manufacturer Part Number: SMC256BFY6E
• Manufacturer: NUMONYX [Numonyx B.V]

SMCxxxBF
Table 9.
–VS1, –VS2
(PC Card Memory Mode)
–VS1, –VS2
–VS1, –VS2
–WAIT
(PC Card Memory Mode)
–WAIT
(PC Card I/O Mode)
IORDY
(True IDE Mode)
–WE
(PC Card Memory Mode)
–WE
–WE
WP
(PC Card Memory Mode)
–IOIS16
(PC Card I/O Mode)
–IOCS16
(True IDE Mode)
(PC Card I/O Mode)
(True IDE Mode)
(PC Card I/O Mode)
(True IDE Mode)
Signal Name
Signal Description (continued)
Dir.
O
O
O
I
33,40
Pin
42
36
24
Voltage Sense Signals.–VS1 is grounded so that the CIS
can be read at 3.3 volts and –VS2 is reserved by PCMCIA
for a secondary voltage.
Same for all modes.
Same for all modes.
Numonyx CF does not assert the WAIT (IORDY) signal
Driven by the host to strobe memory write data to the
registers.
Used for writing to the configuration registers.
Not used, should be connected to V
No write protect switch available. It is held Low after the
completion of the reset initialization sequence.
Used for the 16 bit Port (–IOIS16) function. Low indicates
that a 16 bit or odd Byte only operation can be performed at
the addressed port.
Asserted Low when the Card is expecting a Word data
transfer cycle.
Description
CC
Electrical interface
by the host.
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