Ultra Dma Timings - IBM DARA-206000 - Travelstar 12 GB Hard Drive Specifications

6.5.3 Ultra DMA Timings

The Ultra D M A timing meets Mode 0,1,2,3 and 4 of the Ultra D M A Protocol.
6.5.3.1 Initiating Read DMA
D M A R Q
< T u i
D M A C K
< T a c k > < T e n v >
S T O P
< T a c k > < T e n v >
H D M A R D Y
T z r d y >
D S T R O B E
D B ( 1 5 : 0 0 ) X X X X X X X X X X X X X X X
H o s t d r i v e s D B
Figure 32. Ultra D M A cycle time chart (Initiating Read)
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O E M Specifications of DARA-2xxxxx 2.5 inch H D D Rev 2.1
>
< < T f s
T a z < > < > T z a d
X X X
> <
< T 2 c y c
> < T c y c > <
> T d v s T d v h <
R D D a t a X X X R D D a t a
D e v i c e d r i v e s D B
>
T c y c >
X X X R D D a t a