Silicon Image SiliconDrive SSD-DXXX(I)-4210 - Manual (Page 36)

ATA AND T RUE IDE R EGISTER D ECODING SSD-D XXX (I)-4210 D ATA S HEET
S ILICON S YSTEMS P ROPRIETARY
This document and the information contained within it is confidential and proprietary to SiliconSystems, Inc.
All unauthorized use and/or reproduction is prohibited.
4210D-03DSR P AGE 27 F EBRUARY 2, 2009
ATA
AND
T
RUE
IDE R
EGISTER
D
ECODING
SiliconDrive EP can be configured as either a a memory-mapped or an an I/O
devices. As noted earlier, communication to and from the drive is
accomplished using the ATA Command Block.
T
ASK
F
ILE
R
EGISTER
S
PECIFICATION
The Task File registers are used for reading and writing the storage data in the
SiliconDrive EP. The decoded addresses are as shown in the following table.
Table 14: Task File Register Specification
CS0# CS1# DA02 DA01 DA00 DIOR# = L DIOW# = L
0 1 0 0 0 Data Data
0 1 0 0 1 Error Feature
0 1 0 1 0 Sector Count Sector Count
0 1 0 1 1 Sector Number Sector Number
0 1 1 0 0 Cylinder Low Cylinder Low
0 1 1 0 1 Cylinder High Cylinder High
0 1 1 1 0 Drive/Head Drive/Head
0 1 1 1 1 Status Command
0 0 X X X Invalid Invalid
1 1 X X X High-Z Not Used
1 0 0 X X High-Z Not Used
1 0 1 0 X High-Z Not Used
1 0 1 1 0 Alternate Status Device Control
1 0 1 1 1 Device Address Not Used