Overview
1.3 Characteristics of the Available Hardware Options
Note:
All options given below have to be specified when ordering. They can not be installed
later. For an overview of the possible combinations of the options see page 49.
1.3.1 Option “-32P2”: Changed I/O-Pin Routing on P2
The VME-PMC-CPU/2 is currently available with two different I/O-pin assignments:
•
In the standard configuration each of the I/O-pins of the PMC slot 1 (J14) is connected to
exactly one pin of the VMEbus connector P2 (according to VITA 35 (P4V2-64ac)) and each
of the I/O-pins of the PMC slot 2 (J24) is connected with exactly one I/O-pin of the VMEbus
connector P0 (according to VITA 35 (P4V0-64)).
•
In the VME-PMC-CPU/2 with the option '-32P2' the pins are assigned according to IEEE
Std.1386-2001, Table 8. In this option the I/O-signals of both PMC slots are connected with
the pin rows a+c of the VME connector P2:
The pins 33...64 of the PMC connector J24 are connected in parallel to this also to the
rows a and c of the P2 connector. This causes a double assignment of the pins a1..a16
and c1...c16 on P2. Furthermore by this both PMC slots are connected with each other
via 32 of their I/O-pins.
Note:
The advantage of this solution is the access via one standard VMEbus P2-I/O
adapter to each the half of the I/O-signals of both PMC slots.
Attention!
You have to pay attention that your choice of inserted PMC modules does not
lead to undesired interactions between the modules, due to the I/O-signal
connection between the slots!
1.3.2 Option “-T”: Extended Temperature Range
The VME-PMC-CPU/2 with this option is designed for the operation in the extended temperature
range of -40 °C ...+75 °C.
Page 8 of 49
Hardware Manual • Doc.-No.: V.1917.21 / Rev. 1.2
VME-PMC-CPU/2
