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LAN91C111 Datasheet(PDF) 92 Page - Microchip Technology

Part # LAN91C111
Description  10/100 Non-PCI Ethernet Single Chip MAC PHY
PDF  125 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

LAN91C111 Datasheet(HTML) 92 Page - Microchip Technology

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 2011-2016 Microchip Technology Inc.
DS00002276A-page 93
LAN91C111
nIOWR
nWR
I/O Write strobe - asynchronous write access. Address is valid before
leading edge. Data is latched on trailing edge.
IOCHRDY
ARDY
This signal is negated on leading nRD, nWR if necessary. It is then
asserted on CLK rising edge after the access condition is satisfied.
RESET
RESET
A0
nBE0
nSBHE
nBE1
IRQn
INTR0
D0-D15
D0-D15
16 bit data bus. The bus byte(s) used to access the device are a function
of nBE0 and nBE1:
Not used = tri-state on reads, ignored on writes
nIOCS16
nLDEV buffered
nLDEV is a totem pole output. Must be buffered using an open collector
driver. nLDEV is active on valid decodes of A15-A4 and AEN=0.
UNUSED PINS
GND
nADS
VCC
nBE2, nBE3,
nCYCLE, W/nR,
nRDYRTN, LCLK
No upper word access.
TABLE 12-2:
HIGH-END ISA OR NON-BURST EISA MACHINES SIGNAL CONNECTORS
(CONTINUED)
ISA Bus
Signal
LAN91C111 Signal
Notes
nBE0
nBE1
D0-D7
D8-D15
0
0
Lower
Upper
0
1
Lower
Not used
1
0
Not used
Upper



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