Product Description - Dynamic Engineering PMC-PARALLEL-TTL User Manual

Product Description

In embedded systems many of the interconnections are made with single ended TTL or
CMOS level signals. Depending on the system architecture an IP or a PMC will be the
right choice to make the connection. With most architectures you have a choice as
there are carriers for cPCI, PCI, VME, PC/104p and other buses for both PMC and IP
mezzanine modules.
Usually the choice is based on other system constraints as both the PMC and IP can
provide the IO you require. Dynamic Engineering would be happy to assist in your
decision regarding architecture and other trade-offs with the PMC / IP decision.
Dynamic Engineering has carriers for IP and PMC modules for most architectures, and
is adding more as new solutions are requested and required by our customers.
If you are interested in an IP module solution please refer to the IP-Parallel-IO.
PMC-Parallel-TTL is an upgrade for the PMC-Parallel-IO. After 8 years of production,
numerous updates to handle obsolete parts, and new customer requirements it is time
for an updated design. The PMC Parallel IO is still available for clients who have
designed it into their systems. The PMC Parallel TTL is recommended for new systems
and to upgrade current designs. The connector pinouts are retained for ease of system
migration.
The PMC compatible PMC-Parallel-TTL has 64 independent digital IO. The high density
makes efficient use of PMC slot resources. The IO is available for system connection
through the front panel, via the rear [Pn4] connector, or both. A high density 68 pin
SCSI III front panel connector provides the front panel IO. The IO lines can be
protected with optional transorbs. The rear panel IO has a PIM and PIM Carrier
available for rear panel wiring options.
The HDEterm68 http://www.dyneng.com/HDEterm68.html
can be used as a breakout for the front or rear panel IO. The HDEcabl68 provides a
convenient cable. http://www.dyneng.com/HDEcabl68.html Custom cables can be
manufactured to your requirements. Please contact Dynamic Engineering with your
specifications.
Each channel is programmable to be input or output on a channel-by-channel basis. All
64 IO channels can be used as interrupt generators. Interrupts are programmable to be
based on rising, falling and change of state [both] conditions. The interrupts are
maskable to allow polled operation as well.
The inputs are available unfiltered and after the transition detection. The transition
detection is programmable for clock rate. The local 50 MHz oscillator, PCI or external
clocks can be selected as the reference to the clock divider. The clock divider is
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