Fujitsu MPG3XXXAH-E manual Power-on and reset, Bsy, BSY Dasp, BSY Pdiag Dasp

5.6.4Power-on and reset

Figure 5.20 shows power-on and reset (hardware and software reset) timing.

(1)Only master device is present

Clear Reset *1

Power-on

RESET- tM

Software reset

tN

BSY

DASP- tP

*1: Reset means including Power-on-Reset, Hardware Reset (RESET-), and Software Reset.

(2)Master and slave devices are present (2-drives configuration)

Clear Reset

[Master device]			tN
		BSY
		DASP-
	[Slave device]
		BSY
						tQ
		PDIAG-		tP
						tS
		DASP-
					tR
Symbol			Timing parameter				Min.	Max.	Unit
tM		Pulse width of RESET-					25	—	∝ s
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

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