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SDP3B FlashDisk Product Manual
4.4
Card Configuration
The
SDP3B
FlashDisks
appropriate information in the Card Information
Structure (CIS). The following
registers are used to coordinate the I/O spaces and
the Interrupt level of cards that are located in the
system. In addition, these registers provide a
Table 4-11 Registers and Memory Space Decoding
-CE2 -CE1 -REG - O E - W E A10 A9 A8-A4 A3
1
1
X
X
X
0
0
0
1
0
1
0
0
1
1
0
0
0
1
0
X
0
0
1
1
0
1
1
0
1
1
1
0
0
1
1
X
0
0
0
1
0
0
1
1
0
0
0
1
0
0
1
0
1
0
0
0
1
0
1
Configuration Registers Decoding
-CE2 -CE1 -REG - O E -WE A10 A9 A8-A4 A3
X
0
0
0
X
0
0
1
X
0
0
0
X
0
0
1
X
0
0
0
X
0
0
1
X
0
0
0
X
0
0
1
Note:
The location of the card configuration registers should always be read from the CIS since these locations
may vary in future products. No writes should be performed to the SDP3B FlashDisk attribute memory
except to the card configuration register addresses. All other attribute memory locations are reserved.
38
are
identified
by
configuration
X
X
X
XX
1
X
1
XX
1
X
X
XX
1
X
X
XX
1
X
X
XX
0
X
1
XX
0
X
X
XX
0
X
X
XX
0
X
X
XX
1
0
0
XX
0
0
0
XX
1
X
X
XX
0
X
X
XX
1
X
X
XX
0
X
X
XX
1
0
1
00
0
0
1
00
1
0
1
00
0
0
1
00
1
0
1
00
0
0
1
00
1
0
1
00
0
0
1
00
SanDisk SDP3B FlashDisk Product Manual © 1998 SANDISK CORPORATION
method for accessing status information about the
SDP3B FlashDisk that may be used to arbitrate
between multiple interrupt sources on the same
interrupt level or to replace status information
that appears on dedicated pins in memory cards
that have alternate use in I/O cards.
A2 A1 A0
X
X
X
X
Standby
X
X
X
0
Configuration Registers Read
X
X
X
X
Common Memory Read (8 Bit D7-D0)
X
X
X
X
Common Memory Read (8 Bit D15-D8)
X
X
X
0
Common Memory Read (16 Bit D15-D0)
X
X
X
0
Configuration Registers Write
X
X
X
X
Common Memory Write (8 Bit D7-D0)
X
X
X
X
Common Memory Write (8 Bit D15-D8)
X
X
X
0
Common Memory Write (16 Bit D15-D0)
X
X
X
0
Card Information Structure Read
X
X
X
0
Invalid Access (CIS Write)
X
X
X
1
Invalid Access (Odd Attribute Read)
X
X
X
1
Invalid Access (Odd Attribute Write)
X
X
X
X
Invalid Access (Odd Attribute Read)
X
X
X
X
Invalid Access (Odd Attribute Write)
A2 A1 A0
SELECTED REGISTER
0
0
0
0
Configuration Option Reg Read
0
0
0
0
Configuration Option Reg Write
0
0
1
0
Card Status Register Read
0
0
1
0
Card Status Register Write
0
1
0
0
Pin Replacement Register Read
0
1
0
0
Pin Replacement Register Write
0
1
1
0
Socket and Copy Register Read
0
1
1
0
Socket and Copy Register Write
SELECTED SPACE
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