SMC128AF NUMONYX [Numonyx B.V], SMC128AF Datasheet - Page 30
SMC128AF
Manufacturer Part Number
SMC128AF
Description
Manufacturer
NUMONYX [Numonyx B.V]
Datasheet
1.SMC128AF.pdf
(82 pages)
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Card configuration
6
Table 23.
30/82
–CE2 –CE1 –REG –OE –WE A10 A9 A8-A4 A3 A2 A1 A0
1
X
1
0
0
X
1
0
0
X
1
1
1
0
0
1
0
0
1
0
0
0
1
0
0
0
0
0
1
1
Card configuration
The CompactFlash memory card is identified by information in the card information structure
(CIS). The card has four Configuration registers
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
memory
CompactFlash memory card registers and memory space decoding
X
0
1
1
1
0
1
1
1
0
0
0
0
0
0
Configuration Option register
Pin Replacement register
Card Configuration and Status register
Socket and Copy register
function.
X
0
0
0
0
1
1
1
1
0
1
0
1
0
1
X
1
1
1
1
0
0
0
0
1
0
1
0
1
0
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
X
X
X
X
X
X
X
X
X
X
X
1
1
0
0
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
XX
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
(Table 23
X
X
X
0
X
0
X
0
X
X
0
0
0
1
1
Common Memory Read (D15 to D8)
Common Memory Read (D15 to D0)
Common Memory Write (D15 to D8)
Common Memory Write (D15 to D0)
Invalid Access (Odd Attribute Read)
Invalid Access (Odd Attribute Read)
Invalid Access (Odd Attribute Write)
Invalid Access (Odd Attribute Write)
Common Memory Read (D7 to D0)
Common Memory Write (D7 to D0)
and
Card Information Structure Read
Configuration registers Read
Configuration registers Write
Invalid Access (CIS Write)
Table
Selected space
Section 6.5: Attribute
24).
Standby
SMCxxxAF
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