SMC Networks SMC91C95 Bedienungsanleitung PDF herunterladen (Seite 123)

123

FIGURE 31 - DATA REGISTER SPECIAL WRITE ACCESS

nIOCS16

D0-D15

VALID ADDRESS

A0-15

(ISA)

AEN,

nSBHE

nIOWR

VALID DATA IN

IOCHRDY

t18

Parameter

min

typ

max

units

425

t18

Control Active to IOCHRDY Low

IOCHRDY Width when Data Register is Full

IOCHRDY is used instead of meeting t20 and t44.

'No Wait St' bit is 1 - IOCHRDY only negated if needed and only for Data Register access.

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SMC Networks SMC91C95 Bedienungsanleitung Seite 123