Parameter List Header Format; Field Definitions - Spectra Logic Spectra 10000 User Manual

10kdev_.book Page 67 Friday, March 12, 1999 9:44 AM
4 = Page Code (Byte 02, bits 5-0) This field specifies which pages are to be returned by the
library. A value of 3Fh for this field returns all pages of mode data in the following order,
1Dh (Element Address Assignment Page), 1Eh (Transport Geometry Page), 1Fh (Device
Capabilities Page), 00h (Vendor Unique Page).
5 = Allocation Length (Byte 04, bits 7-0) The Allocation Length is the length of the
parameter list to be returned by the library. The maximum length returned is 112 (70h)
bytes.
The library terminates the Data-In phase when the number of bytes specified by the
Allocation Length have been transferred or when all available Mode Sense data has been
transferred to the initiator, whichever is less.

Parameter List Header Format

Field Definitions

Sense Data Length (Byte 00, bits 7-0)
The Sense Data Length field indicates the number of bytes of parameter information to
be returned to the initiator, excluding the Sense Data Length field value, and including
the three additional Parameter List Header bytes.
Bit 7 6 5
Byte
00
Sense Data Length
01
02
Reserved
03
4 3 2 1 0