Card configuration, 1 multiple function compactflash storage cards – Transcend Information Transcend CF 80X TS32M~1GCF80 User Manual
Page 28
T
T
T
S
S
S
3
3
3
2
2
2
M
M
M
~
~
~
1
1
1
G
G
G
C
C
C
F
F
F
8
8
8
0
0
0
80X CompactFlash Card
Transcend Information Inc.
V1.1
28
4. Card Configuration
The CompactFlash Storage Cards is identified by appropriate information in the Card Information Structure (CIS).
The following configuration 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 method for accessing status information about the
CompactFlash Storage Card 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.
4.1 Multiple Function CompactFlash Storage Cards
-CE2 -CE1 -REG -OE -WE A10
A9
A8-A4
A3
A2 A1 A0
SELECTED SPACE
1
1
X
X
X
X
X
XX
X
X
X
X
Standby and UDMA transfer
X
0
0
0
1
0
1
XX
X
X
X
0
Configuration Registers Read
1
0
1
0
1
X
X
XX
X
X
X
X
Common Memory Read (8 Bit D7-D0)
0
1
1
0
1
X
X
XX
X
X
X
X
Common Memory Read (8 Bit D15-D8)
0
0
1
0
1
X
X
XX
X
X
X
0
Common Memory Read (16 Bit D15-D0)
X
0
0
1
0
0
1
XX
X
X
X
0
Configuration Registers Write
1
0
1
1
0
X
X
XX
X
X
X
X
Common Memory Write (8 Bit D7-D0)
0
1
1
1
0
X
X
XX
X
X
X
X
Common Memory Write (8 Bit D15-D8)
0
0
1
1
0
X
X
XX
X
X
X
0
Common Memory Write (16 Bit D15-D0)
X
0
0
0
1
0
0
XX
X
X
X
0
Card Information Structure Read
1
0
0
1
0
0
0
XX
X
X
X
0
Invalid Access (CIS Write)
1
0
0
0
1
X
X
XX
X
X
X
1
Invalid Access (Odd Attribute Read)
1
0
0
1
0
X
X
XX
X
X
X
1
Invalid Access (Odd Attribute Write)
0
1
0
0
1
X
X
XX
X
X
X
X
Invalid Access (Odd Attribute Read)
0
1
0
1
0
X
X
XX
X
X
X
X
Invalid Access (Odd Attribute Write)
Table: CompactFlash Storage Card Configuration Registers Decoding
-CE2 -CE1 -REG -OE -WE A10 A9 A8-A4 A3 A2 A1 A0 SELECTED REGISTER
X
0
0
0
1
0
1
00
0
0
0
0
Configuration Option Reg Read
X
0
0
1
0
0
1
00
0
0
0
0
Configuration Option Reg Write
X
0
0
0
1
0
1
00
0
0
1
0
Card Status Register Read
X
0
0
1
0
0
1
00
0
0
1
0
Card Status Register Write
X
0
0
0
1
0
1
00
0
1
0
0
Pin Replacement Register Read
X
0
0
1
0
0
1
00
0
1
0
0
Pin Replacement Register Write
X
0
0
0
1
0
1
00
0
1
1
0
Socket and Copy Register Read
X
0
0
1
0
0
1
00
0
1
1
0
Socket and Copy Register Write
Note: For CompactFlash Storage Cards, the location of the card configuration registers should always be read from the
CIS since these locations may vary in future products.
Table: CompactFlash Storage Card Registers and Memory Space Decoding