SMC032BFY6 datasheet(21/91 Pages) STMICROELECTRONICS

No de pièce	SMC032BFY6

Description	32MByte, 64MByte, 128MByte, 256MByte, 512MByte, 1GByte, 2GByte, and 4GByte 3.3/5V Supply CompactFlash??Card

PDF	91 Pages

Scroll/Zoom	100%

Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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21 / 91 page

SMCxxxBF

Electrical interface

21/91

–VS1, –VS2

(PC Card Memory Mode)

33,40

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.

–VS1, –VS2

(PC Card I/O Mode)

Same for all modes.

–VS1, –VS2

(True IDE Mode)

Same for all modes.

–WAIT

(PC Card Memory Mode)

ST CF does not assert the WAIT (IORDY) signal

–WAIT

(PC Card I/O Mode)

IORDY

(True IDE Mode)

–WE

(PC Card Memory Mode)

I36

Driven by the host to strobe memory write data to the

registers.

–WE

(PC Card I/O Mode)

Used for writing to the configuration registers.

–WE

(True IDE Mode)

Not used, should be connected to VCC by the host.

(PC Card Memory Mode)

O24

No write protect switch available. It is held Low after the

completion of the reset initialization sequence.

–IOIS16

(PC Card I/O Mode)

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.

–IOCS16

(True IDE Mode)

Asserted Low when the Card is expecting a Word data

transfer cycle.

Table 9.

Signal Description (continued)

Signal Name

Dir.

Description

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