Quantum Audio Travan 40 Tape Drive STT3401A User Manual
Page 54
Chapter 5
ATAPI Interface
Page 46
Seagate Travan 40 Product Manual
Page 31h—Special Information
Data Bits
Byte
7
6
5
4
3
2
1
0
Hex
0
0
0
Page Code
31
1
0
0
0
0
0
0
0
0
00
2
3
MSB
Additional Page Length
LSB
00
1F
4
5
MSB
Parameter Code
LSB
00
00
6
DU
DS
TSD
ETC
TMC
0
LP
E1
7
Parameter Length
06
8
D
MSB
Unit Serial Number
LSB
XX
XX
Page 31h—Special Information Definitions
Byte
00
Page Code
Set to 31h.
01
Reserved
Set to 00h
02-03
Additional Page Length
Set to 1Eh.
04-05
Parameter Code
Set to 00 00h, indicating the first parameter follows.
06
DU
The Disable Update bit is always set to 1.
DS
The Disable Save bit is always set to 1, indicating the drive
does not save parameter values.
TSD
The Target Save Disable bit is always set to 1, indicating the
drive does not provide a target defined method for saving log
parameters.
ETC
The Enable Threshold Comparison bit is always set to 0,
indicating comparison to the threshold value is not performed
whenever the cumulative value is updated.
TMC
The Threshold Met Criteria bits are used with the ETC bit and
are always set to 0.
LP
The List Parameters bit is always set to 1, indicating the
parameter is a list parameter.
07
Parameter Length
Set to 0Ch, indicating 12 bytes in the counter.
08-13
Unit Serial Number
Set to the ASCII value of the drives ten-digit serial number.