Embedded Solutions
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packages to allow flexible termination options for custom formats and protocols.
Optional pullup/pulldown resistor packs can also be installed to provide a logic ‘1’ on
undriven lines. The terminations and transceivers are programmable through the Xilinx
device to provide the proper mix of outputs and inputs and terminations needed for a
specific protocol implementation. The terminations are programmable for all I/O.
All configuration registers support read and write operations for maximum software
convenience, and all addresses are long word aligned.
The PMC BiSerial-III conforms to the PMC and CMC draft standards. This guarantees
compatibility with multiple PMC Carrier boards. Because the PMC may be mounted on
different form factors, while maintaining plug and software compatibility, system
prototyping may be done on one PMC Carrier board, with final system implementation
uses a different one.
The PMC BiSerial-III uses a 10 mm inter-board spacing for the front panel, standoffs,
and PMC connectors. The 10 mm height is the "standard" height and will work in most
systems with most carriers. If your carrier has non-standard connectors (height) to
mate with the PMC BiSerial-III, please let us know. We may be able to do a special
build with a different height connector to compensate.
Interrupts are supported by the PMC BiSerial-III-HW2. An interrupt can be configured to
occur at the end of a transmitted packet or message. An interrupt will be set at the end
of a received packet or message. All interrupts are individually maskable, and a master
interrupt enable is also provided to disable all interrupts simultaneously. The current
status is available for the state-machines making it possible to operate in a polled
mode. I2O interrupt processing is also available.
