Текст страницы
12.70 Write Multiple (C5h)
The Write Multiple command transfers one or more sectors from the host to the device, and then the data is written
to the disk media.
Command execution is identical to the Write Sector(s) 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.
Table 259 Write Multiple Command (C5h)
Command Input
Field
Description
FEATURE
N/A
COUNT
The number of logical sectors to be transferred. A value of 00h
indicates that 256 logical sectors are to be transferred
LBA
LBA of first logical sector to be transferred
DEVICE
Bit Description
7:5 Obsolete
4 Transport Dependent
3:0 Reserved
Command
7:0 C5h
Normal Outputs
See Normal Outputs in Section 12.7 Flush Cache (E7h)
Error Outputs
Field
Description
ERROR
Bit Description
7 INTERFACE CRC bit
6:5 Obsolete
4 ID NOT FOUND bit
3 Obsolete
2 ABORT bit
1:0 Obsolete
COUNT
N/A
LBA
LBA of First Unrecoverable Error
DEVICE
Bit Description
7 Obsolete
6 N/A
5 Obsolete
4 Transport Dependent
3:0 Reserved
STATUS
Bit Description
7:6 Transport Dependent
5 DEVICE FAULT bit
4 N/A
3 Transport Dependent
2 N/A
1 SENSE DATA AVAILABLE bit
0 ERROR bit
339
Hard Disk Drive Specification