IBM Deskstar 120 GXP, Specifications

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11.31 Set Multiple (C6h)
see below Status 1 1 0 0 0 1 1 0 Command
- - - - - - - - Device/Head 1 - 1 D - - - - Device/Head
- - - - - - - -
Cylinder High
- - - - - - - -
Cylinder High
- - - - - - - - Cylinder Low - - - - - - - - Cylinder Low
- - - - - - - - Sector Number - - - - - - - - Sector Number
- - - - - - - -
Sector Count
V V V V V V V V
Sector Count
see below Error - - - - - - - - Feature
- - - - - - - - Data - - - - - - - - Data
7 6 5 4 3 2 1 0
Register
7 6 5 4 3 2 1 0
Register
Command Block Input
Registers
Command Block Output
Registers
V – 0 – – 0 V 0 0 0 V 0 0 0 0 0
ERR IDX COR DRQ DSC DF RDY BSY AMN T0N ABT 0 IDN 0 UNC CRC
0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
Status Register Error Register
Figure 138. Set Multiple Command (C6h)
The Set Multiple command enables the device to perform Read and Write Multiple commands and estab-
lishes the block size for these commands. The block size is the number of sectors to be transferred for
each interrupt.
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 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, the Read
Multiple and Write Multiple commands are disabled.
Deskstar 120GXP hard disk drive specifications
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