Data modem
First Claim
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1. A data modem having a Communication Processor Module (CPM), wherein the CPM comprising:
- a host central processing unit;
a host bus connected to the host central processing unit;
a system controller bridge connected to the central processing unit via the host bus;
a memory bus connected to the controller bridge;
a system memory connected to the controller bridge through the memory bus;
a peripheral component interconnect (PCI) bus connected to the controller bridge;
a peripheral component interconnect bridge interfaced with the controller bridge via the peripheral component interconnect bus;
flash memory connected to the peripheral component interconnect ridge; and
a first Erasable Programmable Logic Device (EPLD) connected to the interconnect bridge and the flash memory, wherein the first EPLD provides electronic circuits for at least a system reset controller which controls hardware resets and software resets in the data modem.
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Abstract
An improved data modem (IDM) and method includes a communication processor module, a mass storage module, a power converter module, and one or more DSP modules. The communication processor module utilizes commercial off-the-shelf components as well as programmable logic devices (EPLD), which are programmed to provide a watchdog timer, programmable interrupt controller, flash page addressing, ISA bus decoder and controller, and various circuits and logic.
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Citations
42 Claims
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1. A data modem having a Communication Processor Module (CPM), wherein the CPM comprising:
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a host central processing unit;
a host bus connected to the host central processing unit;
a system controller bridge connected to the central processing unit via the host bus;
a memory bus connected to the controller bridge;
a system memory connected to the controller bridge through the memory bus;
a peripheral component interconnect (PCI) bus connected to the controller bridge;
a peripheral component interconnect bridge interfaced with the controller bridge via the peripheral component interconnect bus;
flash memory connected to the peripheral component interconnect ridge; and
a first Erasable Programmable Logic Device (EPLD) connected to the interconnect bridge and the flash memory, wherein the first EPLD provides electronic circuits for at least a system reset controller which controls hardware resets and software resets in the data modem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A improved data modem, comprising:
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a ruggedized housing comprising;
a backplane;
at least one communication processor module;
a mass storage module; and
a power converter module, wherein the communication processor module comprises at least one EPLD providing a plurality of electronic circuits, and a Pentium-compatible micro processor;
wherein the mass storage module comprises at least one solid-state drive; and
wherein each of the modules is compliant with Standard Electronic Module Form Factor E and are interfaced with one another via the backplane, wherein the communication processor module is hardware compatible with Joint Combat Information Terminal (JCIT), the hardware compatibility comprises electrical interfaces and flow control compatibility to allow the communication processor module to be functional when inserted in JCIT. - View Dependent Claims (39, 40, 41, 42)
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Specification