Flush Cache (E7H) - IBM DTCA-23240 - Travelstar 3.2 GB Hard Drive Specifications

12.3 Flush Cache (E7h)

C o m m a n d B l o c k O u t p u t R e g i s t e r s
R e g i s t e r
D a t a
F e a t u r e
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
C o m m a n d
E r r o r R e g i s t e r
7 6 5
C R C U N C 0
0 0 0
Figure 59. Flush Cache Command (E7h)
This command causes the device to complete writing data from its cache.
The device returns a status, R D Y = 1 and D S C = 1 (50h), after following sequence.
Data in the write cache buffer is written to disk media.
Return a successfull completion.
| Note: Flush cache command does not invoke head unload.
7 6 5 4 3 2 1 0
1 1 D
1 1 1 0 0 1 1 1
4 3 2 1 0
I D N 0 A B T T 0 N A M N
0 0 V 0 0
C o m m a n d B l o c k I n p u t R e g i s t e r s
R e g i s t e r 7 6 5 4 3 2 1 0
D a t a
E r r o r . . . S e e B e l o w . . .
S e c t o r C o u n t
S e c t o r N u m b e r
C y l i n d e r L o w
C y l i n d e r H i g h
D e v i c e / H e a d
S t a t u s . . . S e e B e l o w . . .
S t a t u s R e g i s t e r
7 6 5 4 3
B S Y R D Y D F D S C D R Q C O R I D X E R R
0 V 0 V
Command Descriptions
2 1 0
0 V
101