Write Multiple Ext (39H) - Hitachi HDS725050KLA360 Specifications

12.51 Write Multiple Ext (39h)

Table 170: Write Log Ext Command (3Fh)
Command Block Output Registers
Register
Data Low
Data High
Feature Current
Previous
Sector Current
Count
Previous
Sector Current
Number
Previous
Cylinder Current
Low
Previous
Cylinder Current
High
Previous
Device/Head
Command
Error Register
7 6 5
CRC UNC 0
0 0 0
The Write Multiple Ext command transfers one or more sectors from the host to the device, then the data is written
to the disk media.
Command execution is identical to the Write Sector(s) Ext command except that an interrupt is generated for each
block (as defined by the Set Multiple command) instead of for each sector. The sectors are transferred through the
Data Register 16 bits at a time.
Output parameters to the device
Sector Count Current
Sector Count Previous
Sector Number Current
Sector Number Previous
Cylinder Low Current
Cylinder Low Previous
Cylinder High Current
Cylinder High Previous
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
- 1 - D - - - -
0 0 1 1 1 0 0 1
4 3 2 1
IDN 0 ABT T0N AMN
V 0 V 0
The number of continuous sectors to be transferred low order, bits (7:0)
The number of continuous sectors to be transferred high order, bits (15:8). If zero
is specified in the Sector Count register, then 65,536 sectors shall be transferred.
LBA (7:0)
LBA (31:24)
LBA (15:8)
LBA (39:32)
LBA (23:16)
LBA (47:40)
Deskstar 7K500 and Deskstar E7K500 Hard Disk Drive Specification
Command Block Input Registers
Register
Data Low
Data High
Error
Sector HOB=0
Count
HOB=1
Sector HOB=0
Number
HOB=1
Cylinder HOB=0
Low
HOB=1
Cylinder HOB=0
High
HOB=1
Device/Head
Status
0 7 6 5
BSY RDY DF DSC DRQ
0 0 V 0
225
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
See below
- - - - - - - -
- - - - - - - -
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
V V V V V V V V
- - - - - - - -
See below ...
Status Register
4 3 2 1
COR IDX
V - 0 -
0
ERR
V