Local Bus Arbiter; Connectors; Table 1-3. Local Bus Arbitration Priority - Motorola MVME162LX 300 Series Installation And Use Manual

Board Level Hardware Description
1

Local Bus Arbiter

Connectors

1-24
The local bus arbiter implements a fixed priority which is described in the
following table.

Table 1-3. Local Bus Arbitration Priority

Device
LAN
SCSI
VMEbus
MC68XX040
The MVME162LX Embedded Controller has two 96-position DIN
connectors: P1 and P2. P1 rows A, B, C, and P2 row B provide the
VMEbus interconnection. P2 rows A and C are not used. The
MVME162LX has a 20-pin connector J2 mounted behind the front panel.
When the MVME162LX board is enclosed in a chassis and the front panel
is not visible, this connector allows the reset, abort and LED functions to
be extended to the control panel of the system, where they are visible.
The serial ports on the controller are connected to four 8-pin RJ45 female
connectors (J17) on the front panel. The two IPs connect to the controller
by two pairs of 50-pin connectors. The two 50-pin connectors behind the
front panel are for external connections to IP signals. The memory
mezzanine board is plugged into two 100-pin connectors. The Ethernet
LAN connector is J9, a 15-pin socket connector mounted on the front
panel. The SCSI connector is J10, a 68-pin socket connector is also
mounted on the front panel.
Priority Note
0 Highest
1
2 Next Lowest
3 Lowest
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