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SMC032BFY6 Datasheet(PDF) 36 Page - STMicroelectronics

No. de pieza SMC032BFY6
Descripción Electrónicos  32MByte, 64MByte, 128MByte, 256MByte, 512MByte, 1GByte, 2GByte, and 4GByte 3.3/5V Supply CompactFlash??Card
PDF  91 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SMC032BFY6 Datasheet(HTML) 36 Page - STMicroelectronics

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Card Configuration
SMCxxxBF
36/91
6.3
Pin Replacement Register (204h in Attribute Memory)
This register contains information on the state of the READY signal when configured in
memory mode and the IREQ signal in I/O mode. See Table 29 and Table 30.
6.3.1
CReady
This bit is set to ‘1’ when the bit RReady changes state. This bit can also be written by the
host.
6.3.2
CWProt
This bit is set to '1' when the bit RWProt changes state. This bit can also be written by the
host.
6.3.3
RReady
This bit is used to determine the internal state of the Ready signal. In I/O mode it is used as
an interrupt request. When written, this bit acts as a mask (MReady) for writing the
corresponding bit CReady.
6.3.4
WProt
This bit is always ‘0’ since the CompactFlash Memory Card does not have a Write Protect
switch. When written, this bit acts as a mask for writing the corresponding CWProt bit.
6.3.5
MReady
This bit acts as a mask for writing the corresponding CReady bit.
6.3.6
MWProt
This bit when written acts as a mask for writing the corresponding CWProt bit.
Table 28.
Card Configuration and Status Register (default value: 00h)
Operation
D7
D6
D5
D4
D3
D2
D1
D0
Read
Changed
SigChg
IOIS8
0
0
PwrDwn
Int
0
Write
0
SigChg
IOIS8
0
0
PwrDwn
0
0
Table 29.
Pin Replacement Register (default value: 0Ch)
Operation
D7D6
D5D4
D3D2D1D0
Read
0
0
CReady
CWProt
1
1
RReady
WProt
Write
0
0
CReady
CWProt
0
0
RReady
MWProt



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