Set Multiple (C6H); Table 109 Set Multiple Command (C6H) - Hitachi 7K320 - Travelstar Mobile Hard Drive Specifications

14.38

Set Multiple (C6h)

Command Block Output Registers
Register
Data
Feature
Sector Count
LBA Low
LBA Mid
LBA High
Device
Command
Error Register
7 6 5 4
CRC UNC 0 IDN
0 0 0 0

Table 109 Set Multiple Command (C6h)

The Set Multiple command enables the device to perform Read and Write Multiple commands and
establishes the block size for these commands. The block size is the number of sectors to be
transferred for each interrupt.
The default block size after power up is 0, and Read Multiple and Write Multiple commands are
disabled.
If an invalid block size is specified, an Abort error will be returned to the host, and Read Multiple
and Write Multiple commands will be disabled.
Output Parameters To The Device
Sector Count
7 6 5 4 3 2 1 0
- - - - - - - -
- - - - - - - -
V V V V V V V V
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
1 1 0 0 0 1 1 0
3 2 1 0
0 ABT T0N AM
N
0 V 0 0
The block size to be used for Read Multiple and Write Multiple commands. Valid
block sizes can be selected from 0, 1, 2, 4, 8 or 16. If 0 is specified, then Read Multiple
and Write Multiple commands are disabled.
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7K320 (SATA) OEM Specification
Command Block Input Registers
Register
Data
Error
Sector Count
LBA Low
LBA Mid
LBA High
Device
Status
Status Register
7 6 5 4
BSY RDY DF DSC DRQ COR IDX ERR
0 V 0 -
7 6 5 4 3 2 1 0
- - - - - - - -
...See Below...
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
- - - - - - - -
...See Below...
3 2 1 0
- 0 0 V