Fujitsu MHV2060AT User Manual

Page of 280
5.4  Command Protocol
 
C141-E218 
5-133 
40 ms
 
Figure 5.5  WRITE SECTOR(S) command protocol 
 
For transfer of a sector of data, the host needs to read Status register 
(X’1F7’) in order to clear INTRQ (interrupt) signal. The Status 
register should be read within a period from the DRQ setting by the 
device to starting of the sector data transfer.  Note that the host does 
not need to read the Status register for the first and the last sector to 
be transferred.  If the timing to read the Status register does not 
meet above condition, normal data transfer operation is not assured 
guaranteed. 
When the host issues the command even if the drive requests the 
data transfer (DRQ bit is set), or when the host executes resetting, 
the device correct operation is not guaranteed.