Interface
5-164 C141-E218
5.6.4 Power-on and reset Figure 5.21 shows power-on and reset (hardware and software reset) timing.
(1) Only master device is present
*1: Reset means including Power-on-Reset, Hardware Reset (RESET-), and Software Reset.
Clear Reset *1
tP
tN
tM
BSY
DASP-
Power-on
RESET-
Software reset
(2) Master and slave devices are present (2-drives configuration)
tP
Clear Reset
[Slave device]
[Master device] tN
DASP-
PDIAG-
BSY
BSY
DASP-
t
Q
t
R
t
S
Symbol Timing parameter Min. Max. Unit
tM Pulse width of RESET- 25 — µs
tN Time from RESET- negation to BSY set — 400 ns
tP Time from RESET- negation to DASP- or DIAG- negation — 1 ms
tQ Self-diagnostics execution time — 30 s
tR Time from RESET- negation to DASP- assertion (slave
device) — 400 ms
tS Duration of DASP- assertion — 31 s
Figure 5.21 Power-on reset timing