Datasheet

Travelstar 80GN Hard Disk Drive Specification
186
13.46 Write Multiple EXT (39h)
Write Multiple EXT (39h)
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 The number of continuous sectors to be transferred low order, bits (7-0).
Sector Count Previous The number of continuous sectors to be transferred high order bits (15-8). If zero is speci-
fied in the Sector Count register, then 65,536 sectors will be transferred.
LBA Low Current LBA (7-0)
LBA Low Previous LBA (31-24)
LBA Mid Current LBA (15-8)
LBA Mid Previous LBA (39-32)
LBA High Current LBA (23-16)
LBA High Previous LBA (47-40)
Command Block Output Registers Command Block Input Registers
Register 7 6 5 4 3 2 1 0 Register 7 6 5 4 3 2 1 0
Data Low - - - - - - - - Data Low - - - - - - - -
Data High - - - - - - - - Data High - - - - - - - -
Feature
Current - - - - - - - - Error see below
Previous - - - - - - - -
Sector
Count
Current V V V V V V V V
Sector
Count
HOB=0 - - - - - - - -
Previous V V V V V V V V HOB=1 - - - - - - - -
LBA Low
Current V V V V V V V V
LBA Low
HOB=0 V V V V V V V V
Previous V V V V V V V V HOB=1 V V V V V V V V
LBA Mid
Current V V V V V V V V
LBA Mid
HOB=0 V V V V V V V V
Previous V V V V V V V V HOB=1 V V V V V V V V
LBA High
Current V V V V V V V V
LBA High
HOB=0 V V V V V V V V
Previous V V V V V V V V HOB=1 V V V V V V V V
Device - 1 - D - - - - Device V - - - - - - -
Command 0 0 1 1 1 0 0 1 Status See below ...
Error Register Status Register
7654321 0 76543 21 0
CRC UNC 0 IDN 0 ABT T0N AMN BSY RDY DF DSC DRQ COR IDX ERR
000V0V0 0 0V0V- 0- V