Specifications - Motorola MVME135 User Manual

I
GENERAL INFORMATION
eSingle level system controller capability (level is jumper
selectable).
eHigh level multiprocessor control and status registers used for
inter-processor signaling and communication.
e Round Robin requesting provides fairness of VMEbus mastership for
systems with multi pl e MVME135/136s (software sel ectabl e).
~Two
front panel RS-232C serial ports with level translators;
eliminating the need for a transition board between the
MVME135/136 and a terminal or modem.
eTwo on-board ROM sockets for a capacity of 128Kb (configured for
Industry Standard JEDEC 28-pin ROM/PROM/EPROM devices; user
provided).
1.3 SPECIFICATIONS
General specifications for the
~'VMEI35/136
are provided in the
following table. Sections 1.2.2 and 1.2.3 detail cooling
requ i rements and FCC compl i ance, respect i vely.
TABLE 1-1. MVME135/136 SPECIFICATIONS
Characteristic Specification
Microprocessor MC68£120 32-bit microprocessor
Clock signal:
MVME135/135A/136/136A 16.67 MHz CPU clock frequency
MVME135-1 20.0£1 MHz CPU clock frequency
Power requirements:
MVMEI35/135-1/135A
MVME136/136A
1-2
+5 Vdc, 6.75 A maximum (5.6 A typical)
+12 Vdc, 5£1 rnA maximum (1£1 rnA typical)
-12 Vdc, 9£1 mA maximum (30 mA typical)
+5 Vdc, 7.00 A maximum (5.8 A typical)
+12 Vdc, 5£1 mA maximum
(HI
rnA typical)
-12 Vdc, 9£1 mA maximum (3£1 rnA typical)
NOTE: Backplane Connectors -- The P2 backplane
is not only necessary for 32-bit operation but
is also used to connect +5 V to the ~1VME135/136
module for current distribution. The module
draws 5.6 A under typical operation and should
not be operated without a P2 backpl ane.