Programmable Timers; Interval Timers - Motorola MVME2700 Series Installation And Use Manual

Functional Description
3
!
Warning

Programmable Timers

Interval Timers

3-14
When restoring the board to service, execute the PPCBug SET command
( ) after installation to restart the oscillator and initialize
set mmddyyhhmm
the clock.
Lithium batteries incorporate flammable materials such as lithium and
organic solvents. If lithium batteries are mistreated or handled incorrectly,
they may burst open and ignite, possible resulting in injury and/or fire.
When dealing with lithium batteries, carefully follow the precautions listed
below in order to prevent accidents.
Do not short circuit.
Do not disassemble, deform, or apply excessive pressure.
Do not heat or incinerate.
Do not apply solder directly.
Do not use different models, or new and old batteries together.
Do not charge.
Always check proper polarity.
Among the resources available to the local processor are a number of
programmable timers. Timers are incorporated into the PIB controller and
the Z8536 CIO device as diagrammed in
can be programmed to generate periodic interrupts to the processor.
The PCI-ISA Bridge controller has three built-in counters that serve as
programmable interval timers. The counters are grouped into one timer
unit, Timer 1, in the PIB controller. Each counter output has a specific
function:
Figure 1-1 and
Computer Group Literature Center Web Site
Figure 3-1. They