MB86612 Ver la hoja de datos (PDF) - Fujitsu

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MB86612

IEEE 1394 Bus Controller

Fujitsu 

(2) End Sending Operation

Parameter

ICLK rise to ILWRE rise

ILWRE rise to IV rise

ILWR negate time*

MB86612

Symbol

tCHLH

tLHVH

tLWH

Value

Min.

—

1 ticlk + 10

2 ticlk – 10

Max.

40

—

—

Unit

ns

ns

ns

ICLK

IDIR

ILWRE

IV

tCHLH

tLWH

tLHVH

ID7 to ID0

N-2

N-1

N

1

* : The MB86612 operates in ‘negate mode’, in which the ILWRE signal is negated for each source packet received,

as well as ‘assert mode’, in which the ILWRE signal is continuously asserted as long as ISO sending and receiving

FIFO writing are enabled. The above timing chart shows operation in negate mode. If there one or more packets

of empty space are present in the sending or receiving FIFO area, the ILWRE signal is again asserted.Note that

even in assert mode, if writing to the ISO sending or receiving FIFO areas is disabled, the ILWRE signal is negated

according to the timing shown above, and re-asserted when writing is again enabled.

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