M2488 PRODUCT GUIDE

TAPE UNIT SCSI COMMANDS

4-3.3.2 Display Data (11h)

The 17 bytes of DISPLAY data consists of a format control byte followed by two eight-byte mes- sages. See Table 4-6, Table 4-7 and Table 4-8 on page 4-10. If the Parameter List Length is set to 0 no action is performed and it is not considered an error.

Table 4-6. DISPLAY Parameter (11h)

 

 

 

 

 

 

BITS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BYTES

7

 

6

 

5

4

 

3

2

1

0

 

 

 

 

 

 

 

 

 

 

 

 

0

 

Display Mode Selection

 

Display

 

Flash

Half Msg

0

Data Format

 

 

Length

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-8

 

 

 

 

 

First Half Message

 

 

 

 

 

 

 

 

 

 

 

 

 

9-16

 

 

 

 

 

Second Half Message

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: All bytes should not be set to spaces, because this would appear as a MTU powered down state.

Table 4-7. Display Parameter Field Description (11h)

BYTE

BIT

VALUE

DESCRIPTION

 

 

 

 

0

0

 

The Data Format bit describes the type of data contained in bytes 1 through 16.

 

 

1

If this bit is set to 1, the data in bytes 1 through 16 is considered to be ASCII format.

 

 

0

If bit is 0, the data is EBCDIC format.

 

 

 

 

0

2

 

The Half Msg bit selects which half of the message is to be displayed. This bit is valid

 

 

 

only when the Display length bit is set to zero.

 

 

0

When the Half Msg bit is set to zero, the first half of the message (bytes 1 to 8) is dis-

 

 

 

played.

 

 

1

When the Half Msg bit is set to one, the second half of the message (bytes 9 to 16) is

 

 

 

displayed.

 

 

 

 

0

3

0

When the Flash bit is set to zero, the display does not flash.

 

 

1

A Flash bit set to one causes the display to flash.

 

 

 

 

0

4

0

When the Display Length bit is set to zero, only 8 bytes are displayed. Whether bytes 1

 

 

 

to 8 or bytes 9 to 16 are displayed is selected by bit 2. If bit 2 is set to 0b then bytes 1

 

 

 

through 8 are displayed. If bit 2 is set to 1b bytes 9 to 16 are displayed.

 

 

1

When the display length bit is set to one, bytes 1 to 8 and bytes 9 to 16 are displayed

 

 

 

alternately. Bits 2-3 are ignored for this selection.

 

 

 

 

0

5-7

 

Table 4-9 defines the Display Mode Selection bits.

 

 

 

 

1-16

 

 

The message bytes contain the data to be displayed.

 

 

 

 

April 1997

CG00000-011503 REV. A

4-9

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Fujitsu M2488 manual Display Data 11h, Display Parameter 11h, Display Parameter Field Description 11h