LAN91C95 Ver la hoja de datos (PDF) - SMSC -> Microchip

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LAN91C95

ISA/PCMCIA Full Duplex Single-Chip Ethernet and Modem Controller with RAM

SMSC -> Microchip 

ADDRESS

POINTER

REGISTER

nIOWR

t44

nIORD

DATA

REGISTER

IOCHRDY/

nWAIT (Z)

Parameter

min

typ

t44 Pointer Register Reloaded to a Word of Data

Prefetched into Data Register

2 * t20

max

units

ns

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.

FIGURE 38 - MEMORY READ TIMING

ADDRESS

nIOWR

DATA

REGISTER

t45

POINTER

REGISTER

Parameter

t45 Last Access to Data Register to Pointer

Reloaded

min

typ

max

units

2 * t20

ns

FIGURE 39 - MEMORY WRITE TIMING

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