80220 Datasheet, PDF (47/91 Pages) LSI Computer Systems – 100BASE-TX/10BASE-T Ethernet Media Interface Adapter

80220/80221
SWITCH
FABRIC
84C300
QUAD
100/10
ETHERNET
CONTROLLER
VCC [6:1]
TX_CLK
TXD3
TXD2
TXD1
TXD0
TX_EN
TX_ER
COL
RX_CLK
RXD3
RXD2
RXD1
RXD0
CRS
RX_DV
RX_ER
MDC
MDIO
80220
(44L)
200
1%
TPO+
TPO–
TPI+
200
1%
15 1%
35 1%
0.01
(OPTIONAL)
(OPTIONAL)
MDINT
RX_EN/JAM
35 1%
LED
4X
OPTIONAL
500
50K
25 MHz
SYSTEM
CLOCK
PLED3
PLED2
4
PLED1
PLED0
TPI–
REXT
TRFADJ1
TRFADJ0
OSCIN
GND [6:1]
15 1%
10K
1%
2:1
1:1
75
75
75
0.01
2 KV
1
RJ45
2
4
5
7
8
3
6
75
Figure 12. Typical Switching Port Schematic Using 80220
44-477
MD400159/E