[Master device]
BSY
DASP- [Slave device]
BSY

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

tN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tQ

 

 

 

 

 

 

 

tP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PDIAG-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tS

 

 

 

 

 

DASP-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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

5 - 100

C141-E099-01EN

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Image 165
Fujitsu MPF3XXXAT manual Power-on and reset, BSY Dasp, Pdiag Dasp