Signal Definition - IBM DYLA-28100 - Travelstar 8.1 GB Hard Drive Specifications

6.3 Signal Definition

The pin assignments of interface signals are as follows:
P I N S I G N A L
0 1 R E S E T
0 3 D D 0 7
0 5 D D 0 6
0 7 D D 0 5
0 9 D D 0 4
1 1 D D 0 3
1 3 D D 0 2
1 5 D D 0 1
1 7 D D 0 0
1 9 G N D
2 1 D M A R Q
2 3 D I O W ( * )
2 5 D I O R ( * )
2 7 I O R D Y ( * )
2 9 D M A C K
3 1 I N T R Q
3 3 D A 0 1
3 5 D A 0 0
3 7 C S 0
3 9 D A S P
4 1 + 5 V L O G I C
4 3 G N D
Figure 21. Table of signals
Notes:
1. "O" designates an output from the Drive.
2. "I" designates an input to the Drive.
3. "I/O" designates an input/output common.
4. "OC" designates Open-Collector or Open-Drain output.
5. The signal lines marked with (*) are redefined during the Ultra D M A protocol to provide
special functions. These lines change from the conventional to special definitions at the
moment the Host decides to allow a D M A burst, if the Ultra D M A transfer mode was previ-
ously chosen via SetFeatures. The Drive becomes aware of this change upon assertion of the
-DMACK line. These lines revert back to their original definitions upon the deassertion of
-DMACK at the termination of the D M A burst.
36
O E M Specifications of DYLA-2xxxx 2.5 inch H D D
I / O T y p e P I N
I T T L 0 2
I / O 3 s t a t e 0 4
I / O 3 s t a t e 0 6
I / O 3 s t a t e 0 8
I / O 3 s t a t e 1 0
I / O 3 s t a t e 1 2
I / O 3 s t a t e 1 4
I / O 3 s t a t e 1 6
I / O 3 s t a t e 1 8
( 2 0 )
O 3 s t a t e 2 2
I T T L 2 4
I T T L 2 6
O O D 2 8
I T T L 3 0
O 3 s t a t e 3 2
I T T L 3 4
I T T L 3 6
I T T L 3 8
I / O O D 4 0
P W R 4 2
4 4
S I G N A L I / O
G N D
D D 0 8 I / O 3 s t a t e
D D 0 9 I / O 3 s t a t e
D D 1 0 I / O 3 s t a t e
D D 1 1 I / O 3 s t a t e
D D 1 2 I / O 3 s t a t e
D D 1 3 I / O 3 s t a t e
D D 1 4 I / O 3 s t a t e
D D 1 5 I / O 3 s t a t e
K e y
G N D
G N D
G N D
C S E L I
G N D
H I O C S 1 6 O
P D I A G I / O
D A 0 2 I
C S 1 I
G N D
+ 5 V M O T O R P W R
( R e s v )
T y p e
T T L
O D
O D
T T L
T T L