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TNETX3100 数据表(PDF) 10 Page - Texas Instruments

部件名 TNETX3100
功能描述  ThunderSWITCHE 10-PORT 10-/100-MBIT/S ETHERNETE SWITCH
PDF  80 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

TNETX3100 数据表(HTML) 10 Page - Texas Instruments

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TNETX3100
ThunderSWITCH™ 10-PORT 10-/100-MBIT/S ETHERNET™ SWITCH
SPWS031D – JUNE 1997 – REVISED OCTOBER 1997
10
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
Terminal Functions (Continued)
EAM interface
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
EAM15
(mode select)
51
I
External address match. When EAM15 is high and EAM04 is low, it indicates that the least-significant
nibble EAM03–EAM00 contains a routing code for the single-selected port.
EAM00
39
EAM01
40
EAM02
41
EAM03
43
External address match When EAM15 is low a high on EAM00 EAM09 indicates the data frame
EAM04
44
I
External address match. When EAM15 is low, a high on EAM00–EAM09 indicates the data frame
is transmitted from that single-selected port.
EAM05
46
I
is transmitted from that single selected ort.
EAM00 is the least-significant bit and is associated with port 00.
EAM06
47
EAM00 is the least significant bit and is associated with ort 00.
EAM07
48
EAM08
49
EAM09
50
DIO and statistics interface
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
SAD0
143
I
DIO address SAD0 SAD1 selects the TNETX3100 host registers
SAD1
145
I
DIO address. SAD0–SAD1 selects the TNETX3100 host registers.
SCS
132
I
DIO chip select. When low, SCS indicates a port access is valid.
SDATA0
134
SDATA1
136
SDATA2
137
SDATA3
138
I/O
DIO data SDATA0 SDATA7 is bidirectional byte wide data
SDATA4
139
I/O
DIO data. SDATA0–SDATA7 is bidirectional byte-wide data.
SDATA5
140
SDATA6
141
SDATA7
142
SRDY
130
O
DIO ready. When low, SRDY indicates to the host that data is ready to be read. SRDY also indicates
when data has been received for the write cycle. TNETX3100 drives SRDY high for one clock cycle
before placing the output in the high-impedance (Z) state after SCS is taken high. SRDY should be
pulled high with an external pullup resistor.
SRNW
131
I
DIO read not write. When low, SRNW indicates a write cycle on the DIO port.



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