M2488 PRODUCT GUIDE TAPE UNIT PARAMETERS
April 1997 CG00000-011503 REV. A 5-21
5-3.5 ASCII Implemented Operating Definition Page - Page 82h
VPD page 82h returns the target’s implemented operating definitions in ASCII format. The format
for VPD page 82h is:
Reference the Change Definition SCSI command specification (CDB byte 3) for a description of the
supported operating definitions.
Table 5-24. INQUIRY Data Format VPD Page 82h - ASCII Implemented Operating Definition Page
BITS
BYTES 7 6 5 4 3 2 10
0Peripheral Qualifier Peripheral Device Type =01h
1Page code = 82h
2Reserved
3Page length = 9Dh
4ASCII operating definition description length = 9Ch
ASCII OPERATING DEFINITION DESCRIPTION DATA
5-42 “00h - Use current operating definition”
43 NULL (00h)
44-81 “03h - SCSI-2 operating definition”
82 NULL (00h)
83-120 “40h - Change user product data”
121 NULL (00h)
122-159 “41h - Change factory product data”
160 NULL (00h)
Table 5-25. INQUIRY Data Format VPD Page 82h Field Description
BYTE BIT VALUE DESCRIPTION
4 0-7 The ASCII operating definition description length field indicates the length in bytes
of the ASCII operating definition description data that follows. If the allocation
length is less than the length of data to be returned, the ASCII operation definition
description length is not adjusted to reflect the truncation.
5-160 The ASCII operating definition description data field contains the ASCII operating
definition description data. The data in this field is formatted in lines, where each
line is terminated with a NULL (00h) character. The ASCII characters in each line
shown in the table above are left aligned and ASCII spaces (20h) are used to pad
each line up to the NULL (00h) character. Each line has a total length of 39 (27h)
bytes, including the NULL character.