Operating instructions

9-10
SCSI REFERENCE 1012975
CHAPTER 9—MODE SELECT (15h)
9.2.4 LCD MODE PAGE (PAGE CODE 22h)
Page Code – Byte 00, Bits 5 through 0
This field identifies the LCD Mode page. The value of this field must be 22h.
Parameter Length – Byte 01
This field indicates the length, in bytes, of the LCD Mode page. The valid
value for this field is 22h (34), which indicates that 34 bytes of data follow this
byte.
LCD Security Valid – Byte 02, Bit 7
This bit indicates whether a change to LCD security is being requested. When
LCD security is enabled, access to certain LCD menu options is prevented. The
settings for this bit are as follows:
0 – LCD security is not being changed. The value of the LCD Security bit (byte
02, bit 6) should be ignored.
1 – LCD security is being changed according to the value of the LCD Security
bit (byte 02, bit 6).
LCD Security – Byte 02, Bit 6
When the LCD Security Valid bit (byte 02, bit 7) is 1, the LCD Security bit
enables or disables LCD security. The settings for this bit are as follows:
0 – Disable LCD security (factory default)
1 – Enable LCD security
Bit
Byte
7 6 5 4 3 2 1 0
00 Reserved Page Code (22h)
01 Parameter Length (22h)
02
LCD
Security
Valid
LCD
Security
Reserved
Write
Line 1
Reserved
03 Reserved
04
Display Line 1
...
19
20
Reserved
...
35