Fujitsu MPD3XXXAH User Manual download pdf (Page 166)

C141-E072-01EN 5 - 99

5.6.4 Power-on and reset

Figure 5.20 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-

tQ

tR

tS

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 5.20 Power-on Reset Timing

1 ... 165 166 167 ... 191

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