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SMC032AF bảng dữ liệu(PDF) 30 Page - Numonyx B.V

tên linh kiện SMC032AF
Giải thích chi tiết về linh kiện  32 Mbyte, 64 Mbyte, 128 Mbyte, 256 Mbyte and 512 Mbyte 3.3 V / 5 V supply CompactFlash??card
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SMC032AF bảng dữ liệu(HTML) 30 Page - Numonyx B.V

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Card configuration
SMCxxxAF
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6
Card configuration
The CompactFlash memory card is identified by information in the card information structure
(CIS). The card has four Configuration registers (Table 23 and Table 24).
●
Configuration Option register
●
Pin Replacement register
●
Card Configuration and Status register
●
Socket and Copy register
They are used to coordinate the I/O spaces and the Interrupt level of cards that are located
in the system. In addition, in I/O Card mode these registers provide a method for accessing
status information that would normally appear on dedicated pins in Memory Card mode. The
location of the Card Configuration registers should always be read from the CIS.These
registers cannot be used in True IDE mode.
No writes should be performed to the attribute memory except to the Configuration register
addresses. All other attribute memory locations are reserved. See Section 6.5: Attribute
memory function.
Table 23.
CompactFlash memory card registers and memory space decoding
–CE2 –CE1 –REG –OE –WE A10
A9 A8-A4 A3 A2 A1 A0
Selected space
1
1
X
X
X
X
X
XXX
XX
X
X
X
Standby
X
0
0
0
1
0
1
XXX
XX
X
X
0
Configuration registers Read
1
0
1
0
1
X
X
XXX
XX
X
X
X
Common Memory Read (D7 to D0)
0
1
1
0
1
X
X
XXX
XX
X
X
X
Common Memory Read (D15 to D8)
0
0
1
0
1
X
X
XXX
XX
X
X
0
Common Memory Read (D15 to D0)
X
0
0
1
0
0
1
XXX
XX
X
X
0
Configuration registers Write
1
0
1
1
0
X
X
XXX
XX
X
X
X
Common Memory Write (D7 to D0)
0
1
1
1
0
X
X
XXX
XX
X
X
X
Common Memory Write (D15 to D8)
0
0
1
1
0
X
X
XXX
XX
X
X
0
Common Memory Write (D15 to D0)
X
0
0
0
1
0
0
XXX
XX
X
X
0
Card Information Structure Read
1
0
0
1
0
0
0
XXX
XX
X
X
0
Invalid Access (CIS Write)
1
0
0
0
1
X
X
XXX
XX
X
X
1
Invalid Access (Odd Attribute Read)
1
0
0
1
0
X
X
XXX
XX
X
X
1
Invalid Access (Odd Attribute Write)
0
1
0
0
1
X
X
XXX
XX
X
X
X
Invalid Access (Odd Attribute Read)
0
1
0
1
0
X
X
XXX
XX
X
X
X
Invalid Access (Odd Attribute Write)



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