Atapi commands – Quantum Audio Travan 40 Tape Drive STT3401A User Manual
Page 36
Chapter 5
ATAPI Interface
Page 28
Seagate Travan 40 Product Manual
Pin
Assignment
Description
Source
21
DMARQ
DMA Request
Device
22
GND
Ground
N/A
23
DIOW-
I/O Write
Host
24
–REQ
Ground
N/A
25
–I/O
I/O Read
Host
26
GND
Ground
N/A
27
IORDY
I/O Ready
Device
28
CSEL
Cable Select
Device
29
DMACK
DMA Acknowledge
Host
30
GND
Ground
N/A
31
INTRQ
Interrupt Request
Device
32
10CS16-
16-Bit I/O
Device
33
DA1
Device Address Bit 1
Host
34
PDIAG
Passed Diagnostics
Device
35
DA0
Device Address Bit 0
Host
36
DA2
Device Address Bit 2
Host
37
CS0-
Chip Select 0
Host
38
CD1-
Chip Select 1
Host
39
DASP-
Device Active or Slave
Present
Device
40
Ground
Ground
N/A
ATAPI commands
This section describes the ATAPI commands as implemented by the STT2401A and
ST3401A. The table below lists the commands in the order of their Operation Code,
and identifies the page number where the command is described in this manual.
Op Code (Hex)
Command
See Page
00
TEST UNIT READY
84
01
REWIND
80
03
REQUEST SENSE
73
08
READ
67
0A
WRITE
86
10
WRITE FILEMARK
89
11
SPACE
82
12
INQUIRY
31
13
VERIFY
85