Hitachi IC25N040ATCS04-0 Specifications - Page 87

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Aborting Host interface Aborting Device operation Initialization of hardware Internal diagnostic Starting or Spinning Up spindle motor Initialization of registers (*2) DASP- handshake PDIAG- handshake Reverting programmed parameters to default ! Number of CHS (set by Initialize Device Parameters) ! Multiple mode ! Write Cache ! Delayed Write ! Read look-ahead ! ECC bytes ! Volatile max. Address ! Address offset mode Power mode Reset Standby timer value (*5) POR o o (*6) o o o o hard reset o (*1) x x x o o o o soft reset o (*1) x x x o x o (*3) (*6) (*4) (*4) o o o o-execute x-does not execute Notes. (*1). (*2). (*3). (*4). (*5). (*6). Execute after the data in write cache has been written. The default value on POR is shown in Figure 58 on page 75. The Set Features command with Feature register = CCh enables the device to revert these parameters to the power on defaults. In the case of sleep mode, the device goes to standby mode. In other cases, the device does not change current mode. After reset the Standby timer value is set to 109 minutes. Set according to the initial power mode selection. Figure 57. Reset response table Hitachi Travelstar 60GH & 40GN hard disk drive specifications 74

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o
o
o
Reset Standby timer value (*5)
(*4)
(*4)
(*6)
Power mode
(*3)
o
o
Reverting programmed parameters to
default
!
Number of CHS (set by Initialize
Device Parameters)
!
Multiple mode
!
Write Cache
!
Delayed Write
!
Read look-ahead
!
ECC bytes
!
Volatile max. Address
!
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
—does not execute
Notes.
Set
according to the initial power mode selection.
(*6)
.
After reset the Standby timer value is set to 109 minutes.
(*5)
.
In the case of sleep mode, the device goes to standby mode. In other cases, the device
does not change current mode.
(*4)
.
The Set Features command with Feature register = CCh enables the device to revert
these parameters to the power on defaults.
(*3)
.
The default value on POR is shown in Figure 58 on page 75.
(*2)
.
Execute after the data in write cache has been written.
(*1)
.
Figure 57. Reset response table
Hitachi Travelstar 60GH & 40GN hard disk drive specifications
74