IBM IC25N020ATDA04 - Travelstar 20 GB Hard Drive - Figure 59. Reset Response Table

o
o
o
Reset Standby timer value (*5)
(*4)
(*4)
(*6)
Power mode
(*3)ooReverting programmed parameters to
default
Ÿ Number of CHS (set by Initialize
Device Parameters)
Ÿ Multiple mode
Ÿ Write Cache
Ÿ Delayed Write
Ÿ Read look-ahead
Ÿ ECC bytes
Ÿ Volatile max. Address
Ÿ
Address offset mode
o
o
o
PDIAG- handshake
x
o
o
DASP- handshake
o
o
o
Initialization of registers (*2)
x
x
(*6)
Starting or Spinning Up spindle motor
x
x
o
Internal diagnostic
x
x
o
Initialization of hardware
(*1)
(*1)
-
Aborting Device operation
o
o
-
Aborting Host interface
soft
reset
hard
reset
POR
o—execute
x—not execute
Note.
(*1). Execute after the data in write cache has been written.
(*2). The default value on POR is shown in Figure 60 on the next page.
(*3). The Set Features command with Feature register = CCh enables the device to revert these
parameters to the power on defaults.
(*4). In the case of sleep mode, the device goes to standby mode. In other cases, the device does not
change current mode.
(*5). After reset the Standby timer value is set to 109 minutes.
(*6). Set according to the initial power mode selection.
Figure 59. Reset response table
Travelstar 48GH, 30GN & 15GN hard disk drive specifications
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