Table 5-219WRITE SKIP MASK Command - Field Description

 

 

 

Field

 

Description

 

 

 

Logical Block Ad-

 

This field specifies the first logical block of the corresponding WRITE (10) COMMAND. This

 

allows a SEEK to begin immediately. The LBA of the following WRITE (10) command must be

dress

 

 

the same as the LBA of the Write SKIP MASK command,

 

 

 

 

 

 

 

This field indicated the length in bytes of the skip mask. The mask is up to 64 bytes, giving a data

 

 

address capability of 256K. The mask consists of a sequence of bits where a "1" bit is for the blocks

Skip Mask Length

 

of data to be transferred and a "0" for the blocks of data that are to be skipped. The first "1" bit of

 

the mask corresponds to the first LBA to be transferred. Any unused bits at the end of the last byte

 

 

 

 

in the mask must be set to 0. The mask is transferred in the data-out buffer transfer of the skip mask

 

 

command.

 

 

 

 

 

This field must be equal to the transfer length in the linked WRITE (10) command. The transfer

Transfer Length

 

length field must be equal to the number "1" bits in the skip mask. If a WRITE (10) is used with

 

 

0 as the transfer length, a transfer length of 256 data blocks is implied.

 

 

 

Maxtor Atlas 10K V

5-155