Dma Timings (Single Word) - IBM DTNA-22160 - Travelstar 2.1 GB Hard Drive Specifications

6.7.1 DMA Timings (Single Word)

The Single Word D M A timing meets Mode 2 of the ATA-3 description.
+ D M A R Q
D M A C K
H I O R / H I O W
R E A D D A T A
W R I T E D A T A
P A R A M E T E R D E S C R I P T I O N
T 0 C y c l e t i m e
T C D M A a c t i v e t o + D M A R Q i n a c t i v e
T D H I O R , H I O W p u l s e w i d t h
T E H I O R d a t a a c c e s s
T F H I O R d a t a h o l d
T G H I O W d a t a s e t u p
T H H I O W d a t a h o l d
T I D M A C K t o
T J H I O R / H I O W t o
Figure 24. D M A (Single Word) cycle timings
< T C >
<
> T I <
<
< T E >
<
H I O R / H I O W s e t u p
D M A C K h o l d
T 0
> T J <
T D >
> T F <
T G > T H <
M I N
( n s e c ) ( n s e c )
Electrical Interface Specifications
> :
M A X N o t e
2 4 0
8 0
1 2 0
6 0
5
3 5
2 0
0
0
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