Quantum Audio Travan 40 Tape Drive STT3401A User Manual
Page 82
Chapter 5
ATAPI Interface
Page 74
Seagate Travan 40 Product Manual
Data Bits
Byte
7
6
5
4
3
2
1
0
Hex
11
Field Pointer
LSB
XX
12
0
CNI
0
WP
PEO
M
UDE
BNL
FIL
XX
13
0
0
NDT
0
BOM
BPE
0
0
XX
14
15
MSB
Data Error Counter
LSB
XX
XX
16
17
MSB
Data Overrun/Under-run Counter
LSB
XX
XX
18
Track Number
XX
19
Cartridge Type
XX
1A
1B
MSB
Filemark Count
LSB
XX
XX
1C
1D
1E
MSB
Physical Block Number
LSB
XX
XX
XX
1F
Tape Module Error Code (High Byte)
XX
20
Tape Module Error Code (Low Byte)
XX
21
Reserved
XX
22
2B
Least
Last 10 Commands
Most
XX
XX
2C
–
3F
Reserved
0X
–
0X
AVF: Address Valid Flag. When the AVF is 1, the Sense Information (bytes 3-6)
contains valid information.
FM: When the Filemark bit is set to 1, a Filemark has been encountered during a
read operation.
EOM: The End-of-Media bit, when set to 1, indicates the tape has reached the
Logical Early Warning Point.
ILI: The Illegal Length Indicator, when set to 1, indicates that the length of the block
read from the media does not match the block length specified by the READ or
COPY command, or the length specified by MODE SELECT.
Sense Key: Defines the type of failure associated with the current Check Condition
(02h Status). The Sense Keys are defined in the following table.
Sense Information: When the AVF bit is 1, the Sense Information bytes represent
the difference between the Transfer Length requested by the command and the
actual number of blocks or bytes transferred (i.e., the residue).
Additional Sense Length: The Additional Sense Length specifies the number of
bytes to follow this byte. For all commands except the COPY command, this field is
38h.