IBM DJSA-210 Hard Drive Specifications - Page 171

Set Multiple C6h, Output Parameters To The Device, Sector Count.

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13.30 Set Multiple (C6h) Command Block Output Registers Register 7 6 5 4 3 2 1 0 Data Feature Sector Count V V V V V V V V Sector Number Cylinder Low Cylinder High Device/Head 1 - 1 D - - - - Command 1 1 0 0 0 1 1 0 Command Block Input Registers Register 7 6 5 4 3 2 1 0 Data Error see below Sector Count Sector Number Cylinder Low Cylinder High Device/Head - - - - H H H H Status see below Error Register 76543210 CRC UNC 0 IDN 0 ABT T0N AMN 00000V00 Status Register 7 6 5 4 3 2 10 BSY RDY DF DSC DRQ COR IDX ERR 0 V 0 - - 0 -V Figure 107. 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 or hard reset is 0. The Read Multiple and Write Multiple commands are disabled. If an invalid block size is specified, an Abort error will be returned to the host. The Read Multiple and Write Multiple commands will be disabled. Output Parameters To The Device Sector Count. This indicates the block size to be used for the Read Multiple and the Write Multiple commands. Valid block sizes can be selected from 0, 2, 4, 8 or 16. If 0 is specified, then the Read Multiple and the Write Multiple commands are disabled. Travelstar 32GH/30GT/20GN hard disk drive specifications 157

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13.30 Set Multiple (C6h)
see below
Status
1 1 0 0 0 1 1 0
Command
– – – – H H H H
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 107. 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 or hard reset is 0. The Read Multiple and Write Multiple commands
are disabled.
If an invalid block size is specified, an Abort error will be returned to the host. The Read Multiple and Write
Multiple commands will be disabled.
Output Parameters To The Device
Sector Count.
This indicates the block size to be used for the Read Multiple and the Write
Multiple commands. Valid block sizes can be selected from 0, 2, 4, 8 or 16. If 0 is
specified, then the Read Multiple and the Write Multiple commands are disabled.
Travelstar 32GH/30GT/20GN hard disk drive specifications
157