smc256bfd6e STMicroelectronics, smc256bfd6e Datasheet - Page 47

• Manufacturer Part Number: smc256bfd6e
• Description: 32mbyte, 64mbyte, 128mbyte, 256mbyte, 512mbyte, 1gbyte, 2gbyte, And 4gbyte 3.3/5v Supply Compactflash Card
• Manufacturer: STMicroelectronics

SMCxxxBF
8.5
True IDE Mode Addressing
When the Card is configured in the True IDE Mode, the I/O decoding is as shown in
Table 40.
–
CS1
1
1
1
1
1
1
1
1
1
0
–
CS0
True IDE Mode I/O Decoding
0
1
0
0
0
0
0
0
0
1
A2
X
0
0
0
0
1
1
1
1
1
A1
X
0
0
1
1
0
0
1
1
1
A0
X
0
1
0
1
0
1
0
1
0
-DMACK
1
0
1
1
1
1
1
1
1
1
Select Card/Head
DMA RD Data
Error Register
Cylinder High
PIO RD Data
Sector Count
Cylinder Low
Sector No.
Alt Status
–
IORD=0
Status
Software interface
Select Card/Head
DMA WR Data
PIO WR Data
Cylinder High
Sector Count
Cylinder Low
Sector No.
Command
–
Alt Status
Features
IOWR=0
Table 40
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