Operating instructions

22-4

SCSI REFERENCE 1012975

CHAPTER 22—SEND DIAGNOSTIC (1Dh)

22.3.1 SUPPORTED DIAGNOSTIC PAGES PAGE (PAGE CODE 00h)

When the value of the Page Code field (byte 00) in the Diagnostic Parameter

Header is 00h, the data that follows contains parameters for the Supported

Diagnostic Pages page. This page allows the initiator to retrieve the list of

supported pages using the RECEIVE DIAGNOSTIC RESULTS command. The

value in the Page Length field (bytes 2 and 3) of the Diagnostic Parameter

Header for this page is 0000h, indicating that there are no parameters

associated with this diagnostic page.

22.3.2 SELF TEST PAGE (PAGE CODE F0h)

When the value of the Page Code field (byte 00) in the Diagnostic Parameter

Header is F0h, the Self Test page is executed by the SEND DIAGNOSTIC

command. The value in the Page Length field (bytes 2 and 3) of the Diagnostic

Parameter Header is 0000h, indicating that there are no parameters associated

with this diagnostic page. This diagnostic page has the same effect as setting

the SelfTest bit (byte 1, bit 2) in the CDB.

Bit

Byte

7 6 5 4 3 2 1 0

00 Page Code (00h)

01 Reserved

02 (MSB)

Page Length (0000h)

(LSB)