Ethernet Interface; Asynchronous Serial Port; Figure 3-2. Asynchronous Serial Port Connections - Motorola MVME2100 Installation And Use Manual

Functional Description

Ethernet Interface

3

Asynchronous Serial Port

3-8
The MVME2100 provides a 10BaseT/100BaseTx Ethernet transceiver
interface using a DEC21143 Ethernet controller and a LXT970 Fast
Ethernet transceiver. The Ethernet interface is accessed via an industry
standard front panel mounted RJ45 connector.
The DEC21143 will be assigned an Ethernet Station Address. The address
will be 0x0001AFxxxxx where xxxxx is the unique number assigned to the
Ethernet controller.
The Ethernet station address is displayed on a label affixed to the board. In
addition, the Ethernet address is stored in the configuration ROM
interfaced to the Ethernet controller.
The MVME2100 uses a TL16C550 or compatible Universal
Asynchronous Receiver/Transmitter (UART) with a 1.8432 MHz input
clock to provide an asynchronous serial interface. EIA232 drivers and
receivers reside onboard and are routed to an industry standard RJ45
connector accessible from the front panel.
TL16C550
DCD#
RTS#
SOUT
SIN
CTS#
DTR#
DSR#
RI#

Figure 3-2. Asynchronous Serial Port Connections

+5V
Computer Group Literature Center Web Site
DCD
1
RTS
2
TXD
4
RXD
5
CTS
7
DTR
8
GND
3
6