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CompactFlash Memory Card Product Manual
SanDisk CompactFlash Memory Card Product Manual © 1998 SANDISK CORPORATION
50
5.4
True IDE Mode Addressing
When the CompactFlash Memory Card is
configured in the True IDE Mode the I/O decoding
is as follows:
Table 5-5 True IDE Mode I/O Decoding
- C E 2
- C E 1
A2
A1
A0
- I O R D = 0
- I O W R = 0
Note
1
0
0
0
0
Even RD Data
Even WR Data
1
0
0
0
1
Error Register
Features
1
0
0
1
0
Sector Count
Sector Count
1
0
0
1
1
Sector No.
Sector No.
1
0
1
0
0
Cylinder Low
Cylinder Low
1
0
1
0
1
Cylinder High
Cylinder High
1
0
1
1
0
Select Card/Head
Select Card/Head
1
0
1
1
1
Status
Command
0
1
1
1
0
Alt Status
Device Control
0
1
1
1
1
Drive Address
Reserved