LAN91C100FD-FD-SS 参数 Datasheet PDF下载

I/O SPACE - BANK 7

OFFSET

NAME

TYPE

SYMBOL

0 THROUGH 7

EXTERNAL REGISTERS

nCSOUT is driven low by the LAN91C100 when a valid access to the EXTERNAL REGISTER range

occurs.

HIGH

BYTE

EXTERNAL R/W REGISTER

LOW

EXTERNAL R/W REGISTER

BYTE

CYCLE

nCSOUT

Driven low.

Transparently latched on Tri-stated on reads.

LAN91C100 DATA BUS

AEN=0

A3=0

Ignored on writes.

A4-15 matches I/O BASE nADS rising edge.

BANK SELECT = 7

BANK SELECT = 4,5,6

Otherwise

High

Ignore cycle.

Normal LAN91C100 cycle.

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