Table of Contents
Advertisement
-CE2
-CE1
-REG
1
1
X
X
0
0
1
0
1
0
1
1
0
0
1
X
0
0
1
0
1
0
1
1
0
0
1
X
0
0
1
0
0
1
0
0
1
0
0
0
1
0
0
1
0
-CE2
-CE1
-REG
X
0
0
X
0
0
X
0
0
X
0
0
X
0
0
X
0
0
X
0
0
X
0
0
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 CompactFlash Memory Card attribute
memory except to the card configuration register addresses. All other attribute memory lo cations are
reserved.
3.4.1. Attribute Memory Function
Attribute memory is a space where CompactFlash Memory Card identification and configuration information is
stored, and is limited to 8-bit wide accesses only at even addresses. The card configuration registers are also located
here.
®
CompactFlash
Memory Card Product Manual, Rev. 10.0 © 2002 SANDISK CORPORATION
Table 3-14. Registers and Memory Space Decoding
-OE -WE
A10
A9
A8-A4
X
X
X
X
XX
0
1
X
1
XX
0
1
X
X
XX
0
1
X
X
XX
0
1
X
X
XX
1
0
X
1
XX
1
0
X
X
XX
1
0
X
X
XX
1
0
X
X
XX
0
1
0
0
XX
1
0
0
0
XX
0
1
X
X
XX
1
0
X
X
XX
0
1
X
X
XX
1
0
X
X
XX
Table 3-15. Configuration Registers Decoding
-OE
-WE
A10
A9
A8-A4
0
1
0
1
1
0
0
1
0
1
0
1
1
0
0
1
0
1
0
1
1
0
0
1
0
1
0
1
1
0
0
1
CompactFlash Memory Card Interface Description
A3
A2
A1
A0
X
X
X
X
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
0
X
X
X
X
X
X
X
X
X
X
X
0
X
X
X
0
X
X
X
0
X
X
X
1
X
X
X
1
X
X
X
X
X
X
X
X
A3
A2
A1
A0
00
0
0
0
0
00
0
0
0
0
00
0
0
1
0
00
0
0
1
0
00
0
1
0
0
00
0
1
0
0
00
0
1
1
0
00
0
1
1
0
SELECTED SPACE
Standby
Configuration Registers Read
Common Memory Read (8 Bit D7-D0)
Common Memory Read (8 Bit D15-D8)
Common Memory Read (16 Bit D15-D0)
Configuration Registers Write
Common Memory Write (8 Bit D7-D0)
Common Memory Write (8 Bit D15-D8)
Common Memory Write (16 Bit D15-D0)
Card Information Structure Read
Invalid Access (CIS Write)
Invalid Access (Odd Attribute Read)
Invalid Access (Odd Attribute Write)
Invalid Access (Odd Attribute Read)
Invalid Access (Odd Attribute Write)
SELECTED REGISTER
Configuration Option Reg Read
Configuration Option Reg Write
Card Status Register Read
Card Status Register Write
Pin Replacement Register Read
Pin Replacement Register Write
Socket and Copy Register Read
Socket and Copy Register Write
3-19
Advertisement
Table of Contents
