Timings - IBM DTCA-23240 - Travelstar 3.2 GB Hard Drive Specifications
(3240/4090 mb) 2.5-inch hard disk drive with ata interface
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- Quick installation manual (2 pages)
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13.0 Timings
The timing of BSY and D R Q in Status Register are shown in Figure 108
F U N C T I O N
I N T E R V A L
P o w e r O n
D e v i c e B u s y A f t e r
P o w e r O n
D e v i c e R e a d y A f t e r
P o w e r O n
S o f t w a r e
D e v i c e B u s y A f t e r
R e s e t
S o f t w a r e R e s e t
D e v i c e R e a d y A f t e r
S o f t w a r e R e s e t
H a r d
D e v i c e B u s y A f t e r
R e s e t
H a r d R e s e t
D e v i c e R e a d y A f t e r
H a r d R e s e t
D a t a I n
D e v i c e B u s y A f t e r
C o m m a n d
C o m m a n d C o d e O u t
I n t e r r u p t , D R Q F o r
D a t a T r a n s f e r I n
D e v i c e B u s y A f t e r
D a t a T r a n s f e r I n
D a t a O u t
D e v i c e B u s y A f t e r
C o m m a n d
C o m m a n d C o d e O u t
D a t a R e q u e s t F o r
D a t a T r a n s f e r O u t
D e v i c e B u s y A f t e r
D a t a T r a n s f e r O u t
I n t e r r u p t F o r
D a t a T r a n s f e r O u t
N o n D a t a
D e v i c e B u s y A f t e r
C o m m a n d
C o m m a n d C o d e O u t
I n t e r r u p t F o r
C o m m a n d C o m p l e t e
Figure 108. Timeout Values
Copyright IBM Corp. 1997
S T A R T
P o w e r O n
P o w e r O n
D e v i c e C o n t r o l
R e g i s t e r R S T = 1
D e v i c e C o n t r o l
R e g i s t e r R S T = 1
B u s R E S E T S i g n a l
A s s e r t e d
B u s R E S E T S i g n a l
A s s e r t e d
O U T t o C o m m a n d
R e g i s t e r
S t a t u s R e g i s t e r
B S Y = 1
2 5 6 t h R e a d F r o m
D a t a R e g i s t e r
O U T t o C o m m a n d
R e g i s t e r
S t a t u s R e g i s t e r
B S Y = 1
2 5 6 t h W r i t e F r o m
D a t a R e g i s t e r
S t a t u s R e g i s t e r
B S Y = 1
O U T t o C o m m a n d
R e g i s t e r
S t a t u s R e g i s t e r
B S Y = 1
S T O P
S t a t u s R e g i s t e r
B S Y = 1
S t a t u s R e g i s t e r
B S Y = 0 a n d R D Y = 1
S t a t u s R e g i s t e r
B S Y = 1
S t a t u s R e g i s t e r
B S Y = 0 a n d R D Y = 1
S t a t u s R e g i s t e r
B S Y = 1
S t a t u s R e g i s t e r
B S Y = 0 a n d R D Y = 1
S t a t u s R e g i s t e r
B S Y = 1
S t a t u s R e g i s t e r
B S Y = 0 a n d D R Q = 1 ,
I n t e r r u p t
S t a t u s R e g i s t e r
B S Y = 1
S t a t u s R e g i s t e r
B S Y = 1
S t a t u s R e g i s t e r
B S Y = 0 a n d D R Q = 1
S t a t u s R e g i s t e r
B S Y = 1
S t a t u s R e g i s t e r
B S Y = 0 a n d R D Y = 1
I n t e r r u p t
S t a t u s R e g i s t e r
B S Y = 1
I n t e r r u p t
T I M E O U T
4 0 0 n s
3 1 s e c
4 0 0 n s
6 s e c
4 0 0 n s
3 1 s e c
4 0 0 n s
3 0 s e c
1 0 u s
4 0 0 n s
7 0 0 u s
( N o t e . 3 )
5 u s
3 0 s e c
( N o t e . 1 )
4 0 0 n s
3 0 s e c
( N o t e . 2 )
171
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