TAPE UNIT SCSI COMMANDS M2488 PRODUCT GUIDE
4-12 CG00000-011503 REV. A April 1997
4-3.4 DISPLAY command CFh (10h)
For display data length of 10h, refer toFT4, bit 7 described in the M2488 User’s Guide.
The DISPLAY command is used to display a message on the operator panel of the tape drive or car-
tridge loader (if installed). This command is executed even if the Magnetic Tape Unit (MTU) is NOT
READY. The Display Data is described in paragraph 4-3.4.2.
4-3.4.1 DISPLAY CDB De scription (1 0h)
DISPLAY is a ten-byte command. The bytes are shown below and described in Table 4-10. Com-
mon fields are described in paragraph 4-3.1 on page 4-4.
The parameter list length specifies the length of display information to be transferred from the ini-
tiator. A CHECK CONDITION is returned if the specified length is not 0 or 16 bytes (10h).
BITS
BYTES 7 6 5 4 3 2 1 0
01 1 0 0 1 1 1 1
1LUN Reserved
2Reserved
3Display Mode Selection Display
Length Flash Half Msg Reserved Data Format
4Reserved
5Reserved
6Reserved
7Reserved
8Parameter List Length = 10h
9Reserved Flag Link
Note: Changeable fields in the CDB are shaded.
Table 4-10. DISPLAY Field Description (10h)
BYTE BIT VALUE DESCRIPTION
0 0-7 CFh Operation Code.
3 0-7 This byte is the display format control byte. The fields in this control byte
are described in Table 4-11.
8 0-7 10h The Parameter List Length specifies the length of c display information to
be transferred from the initiator.