Hitachi HTS543280L9A300 User Manual

Page of 177
 
                       5K320 SATA OEM Specification 
167 
 
14.48  Write Log Ext (3Fh) 
Command Block Output Registers 
   Command Block Input Registers 
Register 
7  6 
5  4  3  2 
1  0     Register 
7  6 
5  4  3  2 
1  0 
Data Low  
-     Data Low 
Data High 
-     Data High 
Current 
-     Error 
...See Below... 
Feature 
Previous 
-       
  
Current 
V  V  V  V  V  V  V  V    
HOB=0  - 
Sector Count 
Previous 
V  V  V  V  V  V  V  V    
Sector Count 
HOB=1  - 
Current 
V  V  V  V  V  V  V  V    
HOB=0  - 
LBA Low 
Previous 
-    
LBA Low 
HOB=1  - 
Current 
V  V  V  V  V  V  V  V    
HOB=0  - 
LBA Mid 
Previous 
V  V  V  V  V  V  V  V    
LBA Mid 
HOB=1  - 
Current 
-    
HOB=0  - 
LBA High 
Previous 
-    
LBA High 
HOB=1  - 
Device 
-     Device 
Command 
0  0 
1  1  1  1 
1  1     Status 
...See Below... 
Error Register 
  
Status Register 
  
CRC  UNC 
IDN 
ABT   T0N  AMN     BSY  RDY  D F  DSC   DRQ  COR  IDX 
ERR 
  
Table  132 Write Log Ext Command 
This command writes a specified number of 512 byte data sectors to the specific log. The device 
shall interrupt for each DRQ block transferred. 
Output Parameters To The Device 
Sector Count Current 
The number of sectors  to be written to the specified log low 
order, bits (7:0).   
Sector Count Previous 
The number of sectors to be written to the specified log high 
orders, bits (15:8). If the number of sectors is greater than the 
number indicated in the Log directory, which is available in Log 
number zero, the device shall return command aborted. The log 
transferred to the device shall be stored by the device starting at 
the first sector in the specified log. 
Sector Number Current 
The log to be written as described in 
Table 111 Log sector 
addresses
 definition. If the host attempts to write to a read only 
log address, the device shall return command aborted. 
Cylinder Low Current 
The first sector of the log to be written low order, bits (7:0). 
Cylinder Low Previous 
The first sector of the log to be written high order, bits (15:8 ) 
If the feature set associated with the log specified in the Sector Number register is not 
supported or enabled, or if the values in the Sector Count, Sector Number or Cylinder Low 
registers are invalid, the device shall return command aborted. If the host attempts to write 
to a read only log address, the device shall return command aborted.