Datasheet

13.5.10 Initialize Device Parameters (91h)
...See Below...Status10001001Command
--------Device/HeadHHHHD1-1Device/Head
--------Cylinder High--------Cylinder High
--------Cylinder Low--------Cylinder Low
--------Sector Number--------Sector Number
--------Sector CountVVVVVVVVSector Count
...See Below...Error--------Feature
--------Data--------Data
01234567Register01234567Register
Command Block Input RegistersCommand Block Output Registers
V00--00000V00000
ERRIDXCORDRQDSCDFRDYBSYAMNT0NABT0IDN0UNCBBK
0123456701234567
Status RegisterError Register
Figure 85. Initialize Device Parameters Command (91h)
The Initialize Device Parameters command enables the host to set the number of sectors per track and
the number of heads minus 1, per cylinder. Words 54-58 in Identify Device Information reflects these
parameters.
The parameters remain in effect until the following events take place:
y another Initialize Device Parameters command is received.
y the device is powered off.
y hard reset occurs.
y soft reset occurs and the Set Feature option of CCh is set
The number of heads minus 1 per cylinder. The minimum is 0 and the maximum is 15.H
The number of sectors per track. 0 does not mean there are 256 sectors per track, but
there is no sector per track.
Sector Count
Output Parameters To The Device
Hard disk drive specification for DSCM-11000/-10512/-10340
101