ATA AND TRUE IDE REGISTER DECODING SSD-CXXX(I)-3600 DATA SHEET
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3600C-04DSR PAGE 43 FEBRUARY 2, 2009
INDEPENDENT I/O MODE REGISTER DECODING
Independent I/O mode or contiguous I/O mode requires the host to decode a
continuous block of 16 I/O registers to select the SiliconDrive.
Table 31: Independent I/O Mode Register Decoding
Reg# Offset A10 A9:A4 A3 A2 A1 A0 OE# = L WE# = L
0 0 X X 0000Even Data
Read
Even Data
Write
0 1 X X 0001Error Feature
0 2 X X 0010Sector CountSector Count
0 3 X X 0011Sector
Number
Sector
Number
0 4 X X 0100Cylinder LowCylinder Low
0 5 X X 0101Cylinder HighCylinder High
0 6 X X 0110Drive/Head Drive/Head
0 7 X X 0111Status Command
0 8 X X 1000Duplicate
Even Data
Read
Duplicate
Even Data
Write
0 9 X X 1001Duplicate Odd
Data Read
Duplicate Odd
Data Write
0 D X X 1101Duplicate ErrorDuplicate
Feature
0 E X X 1110Alternate
Status
Device Control
0 F X X 1111Drive AddressReserved