Receive Diagnostics (1C); Receive Diagnostic - IBM Ultrastar 36LZX Specifications

8.23 RECEIVE DIAGNOSTICS (1C)

Byte
7 6
0
1 Reserved = 0
2
3 (MSB)
4
5 VU = 0
Figure 129. RECEIVE DIAGNOSTIC (1C)
The Receive Diagnostic command requests that analysis data requested by a Send Diagnostics com-
mand be sent to the initiator.
Ÿ
PCV (Page Code Valid) bit of zero indicates that the most recent SEND DIAGNOSTIC command
shall define the data returned by this command. PCV bit of one indicates that the contents of the
Page Code field shall define the data returned by this command.
Ÿ
Parameter List Length specifies the amount of data to be returned to the initiator. This value may
be zero and this is not considered an error. The target terminates the Data In phase when all avail-
able data has been transferred or when the number of bytes transferred equals the Parameter List
Length.
8.23.1 Receive Diagnostic Page 0
This page contains a list of supported pages.
Byte
7 6
0 Page Code = 0
1 Reserved = 0
2-3 Page Length = 03h
4 First supported page 0h
5 Second supported page 40h
6 Third supported page 80h
Figure 130. Receive Diagnostic page 0
Bit
5 4 3
Command Code = 1Ch
Reserved = 0
Page Code
Parameter List Length
Reserved = 0
Bit
5 4 3
Ultrastar 36LZX hard disk drive specifications
2 1 0
PCV
(LSB)
FLAG LINK
2 1 0
155