Scsi Interface; Scsi Termination - Motorola MVME167P Installation And Use Manual

Functional Description
5

SCSI Interface

SCSI Termination

5-10
Each board has an Ethernet Station Address displayed on a label attached
to the VMEbus P2 connector. In addition, the six bytes including the
Ethernet address are stored in the BBRAM configuration area. That is,
0001AFxxxxxx is stored in the BBRAM. The upper four bytes (0001AFxx)
are read at $FFFC1F2C; the lower two bytes (xxxx) are read at
$FFFC1F30.
The MVME167P debugger has the capability to retrieve or set the Ethernet
address. If the data in BBRAM is lost, use the number on the label on
backplane connector P2 to restore it.
The Ethernet transceiver interface is located on the MVME167P main
board, and the industry-standard DB15 connector is located on the
MVME712 series transition board.
Support functions for the 82596CA LAN coprocessor are provided by the
PCCchip2 ASIC. Refer to the 82596CA user's guide and to the
MVME1X7P Single Board Computers Programmer's Reference Guide for
detailed programming information.
The MVME167P has provision for mass storage subsystems through the
industry-standard SCSI bus. These subsystems may include hard and
floppy disk drives, streaming tape drives, and other mass storage devices.
The SCSI interface is implemented using the NCR 53C710 SCSI I/O
controller.
Support functions for the 53C710 are provided by the PCCchip2 ASIC.
Refer to the NCR 53C710 user's guide and to the PCCchip2 description in
the MVME1X7P Single Board Computers Programmer's Reference Guide
for detailed programming information.
It is important that the SCSI bus be properly terminated at both ends.
In the case of the MVME167P, sockets are provided for terminators on the
P2 or LCP2 adapter board. If the SCSI bus ends at the adapter board,
termination resistors must be installed on the adapter board. +5V power to
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