Power On And Hardware Reset Timing - Hitachi DK23EB - Travelstar Series 20 GB Hard Drive Specifications

6.4.3 Power On and Hardware Reset Timing

RESET-
BSY bit
DRDY
DRV 0
PDIAG-
(device 0) (out)
DASP-
(out)
DASP-
(in)
BSY bit
DRDY
DRV 1
(device 1)
PDIAG-
(out)
DASP-
(out)
SYMBOL
t
M
t
N0
t
P0
t
R0
t
S
t
R1
t
N1
t
Q
K6602743
Rev.2
02.12.'02
Figure 6-18 Power On and Hardware Reset Timing
t
Description
RESET- Pulse Width
DRV 0 RESET negation to BSY bit set to one,
release PDIAD_
DRV 0 release DASP--
DRV 0 sample of DASP-
DRV 0 sample of PDIAG-
DRV 1 assert DASP-
DRV 1 negate PDIAG- if asserted
DRV 1 assert PDIAG-
M
t
N0
t
R0
t
P0
t
Q
t
N1
t
R1
- 109 -
t
S
MIN MAX Units
25
400
1
1 450
1ms 31s
400
1
30
µ s
ns
ms
ms
-
ms
ms
sec