Kontron VM62 - Manual (Page 24)

VM62(A) / VM42(A) User’s Manual Chapter 2 Functional Description
2.5 I/O Ports
2.5.1 Ethernet Port
The MC68EN360 is specified to support a full set of IEEE 802.3/Ethernet CSMA/CD media access control and channel
interface functions. Since the 68EN360 requires an external interface adapter and transceiver function, the Ethernet port
can be adapted to all standard Ethernet functions, such as 10BaseT, 10Base5 and 10Base2 via a piggyback connected to the
SI Interface on the VM62(A) / VM42(A).
2.5.2 Serial Ports
The VM62(A) / VM42(A) provides 6 serial ports based on the 68EN360 communications processor. The ports can be
configured in the following way:
• 2 * service / debug ports (SMC port / RxD / TxD only RS232);
• 4 * full MODEM ports / multiprotocol channels (SCC ports).
The service / debug ports are configured as default on the VM62(A) / VM42(A). These ports supply RxD/TxD RS232
Interfaces software handshake (XON/XOFF) capability. The full MODEM ports supply RxD, TxD, RTS, CTS, CD,
DTR and RCLK/TCLK. Two of the full MODEM ports can be configured on the SI Interface with a variety of SI
Modules (RS232/RS485, isolated/non-isolated and so on). Together with the two service/debug ports, a maximum of
three (four) completely configured serial ports are available for the base board. Three (two) serial ports may be configured
via the CXC where three of the four full MODEM Interfaces are routed.
Figure 2.5.2.1: MC68EN360 Intelligent Controller Schematic
MC68EN360
SCC2
SCC3
SCC4
SCC1
SMC2 SMC1
}
}
}
Memory
Piggyback
SI-Piggyback
Interface SI-Interface
CXC Interface
2x RS232 with
Rx and Tx only
Note
The serial channel SCC4 is routed to both the SI Interface and the CXC and can only be used by one or
the other and not both at the same time.
May 17, 1996 © 1995 PEP Modular Computers Page 2-9