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參數(shù)資料
| 型號(hào)： | W7NCF128H21CSA4CM1G |
| 廠商： | MICROSEMI CORP-PMG MICROELECTRONICS |
| 元件分類： | PROM |
| 英文描述： | FLASH 3.3V PROM MODULE, XMA50 |
| 封裝： | CARD-50 |
| 文件頁(yè)數(shù)： | 2/13頁(yè) |
| 文件大?。?/td> | 180K |
| 代理商： | W7NCF128H21CSA4CM1G |
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March 2007
Rev. 2
W7NCF-H-M1 Series
10
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
Signal Name
Dir.
Pin
Description
RESET
(PC Card Memory Mode)
I41
The CompactFlash Storage Card or CF+ Card is Reset when the RESET pin is high with
the following important exception:
The host may leave the RESET pin open or keep it continually high from the application of
power without causing a continuous Reset of the card. Under either of these conditions, the
card shall emerge from power-up having completed an initial Reset.
The CompactFlash Storage Card or CF+ Card is also Reset when the Soft Reset bit in the
Card Conguration Option Register is set.
RESET
(Card I/O Mode)
This signal is the same as the PC Card Memory Mode signal.
-RESET
(True IDE Mode)
In the True IDE Mode, this input pin is the active low hardware reset from the host.
VCC
(PC Card Memory Mode)
-
13, 38
+5 V, +3.3 V power.
VCC
(Pc Card I/O Mode)
This signal is the same for all modes.
VCC
(True IDE Mode)
This signal is the same for all modes.
-VS1
-VS2
(PC Card Memory Mode)
O
33, 40
Voltage Sense Signals. -VS1 is grounded on the Card and sensed by the Host so that
the CompactFlash Storage Card or CF+ Card CIS can be read at 3.3 volts and -VS2 is
reserved by PCMCIA for a secondary voltage and is not connected on the Card.
-VS1
-VS2
(PC Card I/O Mode)
This signal is the same for all modes.
-VS1
-VS2
(True IDE Mode)
This signal is the same for all modes.
-WAIT
(PC Card Memory Mode)
O42
The -WAIT signal is driven low by the CompactFlash Storage Card or CF+ Card to signal
the host to delay completion of a memory or I/O cycle that is in progress.
-WAIT
(PC Card I/O Mode)
This signal is the same as the PC Card Memory Mode signal.
IORDY
(True IDE Mode)
In True IDE Mode, this output signal may be used as IORDY.
-WE
(PC Card Memory Moce)
I36
This is a signal driven by the host and used for strobing memory write data to the registers
of the CompactFlash Storage Card or CF+ Card when the card is congured in the
memory interface mode. It is also used for writing the conguration registers.
-WE
(PC Card I/O Mode)
In PC Card I/O Mode, this signal is used for writing the conguration registers.
-WE
(True IDE Mode)
In True IDE Mode, this input signal is not used and should be connected to VCC by the host.
WP
(PC Card Memory Mode)
O24
Memory Mode – The CompactFlash Storage Card or CF+ Card does not have a write
protect switch. This signal is held low after the completion of the reset initialization
sequence.
-IOIS16
(PC Card I/O Model)
I/O Operation – When the CompactFlash Storage Card or CF+ Card is congured 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.
-IOCS16
(True IDE Mode)
In True IDE Mode this output signal is asserted low when this device is expecting a word
data transfer cycle.
Signal Description (con'd)
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