Device Terminating Read Dma - IBM DBCA-204860 - Travelstar 4.8 GB Hard Drive Specifications

6.5.3.4 Device Terminating Read DMA

< > T s s
D M A R Q
D M A C K
S T O P
H D M A R D Y
D S T R O B E
D D ( 1 5 : 0 0 ) X X X X X
D e v i c e d r i v e s D D
P A R A M E T E R D E S C R I P T I O N
T s s T i m e f r o m s t r o b e t o s t o p a s s e r t i o n
T l i L i m i t e d i n t e r l o c k t i m e
T a z O u t p u t r e l e a s e t i m e
T z a h O u t p u t e n a b l e t i m e
T m l i I n t e r l o c k t i m e
T d s D a t a s e t u p t i m e ( a t d e v i c e s i d e )
T d h D a t a H o l d t i m e
T a c k H o l d t i m e a f t e r
T r d y z P u l l u p t i m e b e f o r e D S T R O B E r e l e a s e
Figure 31. Ultra D M A cycle timings (Device terminating Read)
< T l i >
< T l i >
< T l i
< > T a z
X X X X X X X X X X X X X X X X X X X X X X
< T z a h >
> <
( a t d e v i c e s i d e )
D M A C K n e g a t i o n
< T m l i >
< T a c k >
< T a c k >
> <
T d s < > < > T d h
C R C
H o s t d r i v e s D D
M O D E 0 M O D E 1
M I N M A X M I N M A X
5 0 5 0
0 1 5 0 0 1 5 0
1 0 1 0
2 0 2 0
2 0 2 0
1 5 1 0
5 5
2 0 2 0
2 0 2 0
Electrical Interface Specifications
> T r d y z
X X X X X X X X X X
[ n s e c ]
M O D E 2
M I N M A X
5 0
0 1 5 0
1 0
2 0
2 0
7
5
2 0
2 0
45