Fujitsu MBB2073RC Computer Drive User Manual


 
4.1 Control/Sense Commands
[Byte 7]
WBus16 (16-bit wide data transfer):
Data transfer on a 2-byte bus [0]
Sync (Synchronous data transfer):
Data transfer on the synchronous mode [0]
Linked (Linked command):
Command link function [0]
CmdQue (Command queuing):
Command queuing function [1]
Table 4.3 Command queuing
Bque CmdQue Description
0 0 No command queuing of any kink supported
0 1 Command queuing with all types of task tags supported
1 0 Basic task set model supported
1 1 Illegal combination of BQue and CmdQue bits
VS (Vendor specific):
Not defined [0]
h. Vendor ID field
This field indicates the name of the product's supplier in left-justified
ASCII code, and always indicates FUJITSU. The unused right end is
space for the ASCII code.
i. Product ID field
The product's model name is displayed in left-justified ASCII code in this
field.
j. Product Revision field
The HDD's microcode version number is displayed in ASCII code in this
field.
k. Device Serial Number field
The value following byte 4 of the device serial number in the VPD
information is indicated in this field. Higher order digits which do not
contain valid numbers are filled with ASCII code spaces (X '20').
l. Clocking field
"0" as Reserved.
C141-C013 141