Read Native Max Lba/Cyl (F8H: Vendor Specific) - IBM DYLA-28100 - Travelstar 8.1 GB Hard Drive Specifications

12.15 Read Native Max LBA/CYL (F8h: Vendor Specific)

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 I D N
0 0 0
Figure 76. Read Native Max LBA/CYL (F8h)
This command returns the native max LBA/CYL of H D D which is not effected by Set Max LBA/CYL
command.
Output Parameters To The Device
L LBA mode.Indicates the addressing mo de .L =0 specifies CHS mode and L = 1 does
LBA addressing mode.
D The device number bit.
Register should be specified. D = 0 selects the master device and D = 1 selects the
slave device.
- Indicates that the bit is not used.
Input Parameters From The Device
Sector Number In LBA mode, this register contains native max LBA bits 0 - 7. ( L = 1 )
In CHS mode, this register contains native max sector number. ( L = 0 )
Cylinder High/Low In LBA mode, this register contains native max LBA bits 8 - 15 (Low),
16 - 23 (High). ( L = 1 )
In CHS mode, this register contains native max cylinder number. ( L = 0 )
H In LBA mode, this register contains native max LBA bits 24 - 27. ( L = 1 )
In CHS mode, this register contains native max head number.(L=0)
7 6 5 4 3 2 1 0
1 L 1 D
1 1 1 1 1 0 0 0
4 3 2 1 0
0 A B T T 0 N A M N
0 0 V 0 0
Indicates that the device number bit of the Device/Head
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 V V V V V V V V
C y l i n d e r L o w V V V V V V V V
C y l i n d e r H i g h V V V V V V V V
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
Command Descriptions
H H H H
2 1 0
0 V
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