Datasheet

T
T
T
r
r
r
a
a
a
n
n
n
s
s
s
c
c
c
e
e
e
n
n
n
d
d
d
4
4
4
0
0
0
-
-
-
P
P
P
i
i
i
n
n
n
I
I
I
D
D
D
E
E
E
F
F
F
l
l
l
a
a
a
s
s
s
h
h
h
M
M
M
o
o
o
d
d
d
u
u
u
l
l
l
e
e
e
T
T
T
S
S
S
1
1
1
2
2
2
8
8
8
M
M
M
~
~
~
1
1
1
6
6
6
G
G
G
D
D
D
O
O
O
M
M
M
4
4
4
0
0
0
V
V
V
-
-
-
S
S
S
Transcend Information Inc.
Ver 1.3
31
IDENTIFY DEVICE information
The Identify Device command enables the host to receive parameter information from the device.
This command has the same protocol as the Read Sector(s) command. The parameter words in the
buffer have the arrangement and meanings defined in Table as below. All reserved bits or words are zero.
Hosts should not depend on Obsolete words in Identify Device containing 0. Table below specifies each
field in the data returned by the Identify Device Command. In Table as below, X indicates a numeric
nibble value specific to the card and aaaa indicates an ASCII string specific to the particular drive.
Word
Address
Default
Value
Total
Bytes
Data Field Type Information
0 044Ah 2 General configuration – Bit Significant with ATA-4 definitions.
1 XXXXh 2 Default number of cylinders
2 0000h 2 Reserved
3 00XXh 2 Default number of heads
4 0000h 2 Obsolete
5 0000h 2 Obsolete
6 XXXXh 2 Default number of sectors per track
7-8 XXXXh 4 Number of sectors per card (Word 7 = MSW, Word 8 = LSW)
9 XXXXh 2 Obsolete
10-19 aaaa 20 Serial number in ASCII (Right Justified)
20 0000h 2 Obsolete
21 0000h 2 Obsolete
22 0004h 2 Number of ECC bytes passed on Read/Write Long Commands
23-26 aaaa 8 Firmware revision in ASCII. Big Endian Byte Order in Word
27-46 aaaa 40
Model number in ASCII (Left Justified) Big Endian Byte Order in
Word
47 XXXXh 2 Maximum number of sectors on Read/Write Multiple command
48 0000h 2 Reserved
49 XX00h 2 Capabilities
50 0000h 2 Reserved