SMC Networks SMC91C95 Manual do Utilizador descarregar pdf (Página 129)

129

FIGURE 38 - MEMORY READ TIMING

FIGURE 39 - MEMORY WRITE TIMING

ADDRESS

POINTER

DATA

nIOWR

nIORD

IOCHRDY/

nWAIT (Z)

t44

t44 Pointer Register Reloaded to a Word of Data

Prefetched into Data Register

Parameter min typ max units

ns2 * t20

Note: If t44 is not met, IOCHRDY will be negated for the required time. This parameter can be ignored if

IOCHRDY is connected to the system.

ADDRESS

DATA

POINTER

nIOWR

t45

t45 Last Access to Data Register to Pointer

Reloaded

Parameter min typ max units

ns2 * t20

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SMC Networks SMC91C95 Manual do Utilizador Página 129