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 

t4

AEN

A0-15,

nSBHE

BALE

nIOCS16

nIORD

nIOWR

VALID

t1

t2

t15

t3

Parameter

min

typ

max

units

t1 Address, nSBHE Setup to BALE Falling

20

t2 Address, nSBHE Hold after BALE Falling

20

t3 Address, nSBHE, AEN Setup to Control Active 25

t4 AEN Hold after Control Inactive

20

t15 A4-A15, AEN Low, BALE High to nIOCS16 Low

ns

ns

ns

ns

25

ns

t4 not needed. nIOCS16 not relevant in 8-bit mode.

FIGURE 34 - ISA REGISTER ACCESS WHEN USING BALE

132

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