The 3.3V CMOS HI-6139 device is a member of Holt’s MIL-STD-1553 MAMBATM family and provides a complete single or multi-function interface between a host processor and MIL-STD-1553B bus (a register bit provides optional MIL-STD-1553A operation). Each IC contains a Bus Controller (BC), a Bus Monitor Terminal (MT) and a Remote Terminal (RT). Any combination of the contained 1553 functions can be enabed for concurrent operation. The enabled terminals communicate with the MIL-STD-1553 buses through a shared on-chip dual bus transceiver and external transformers. The user allocates 16K bytes of on-chip static RAM between devices to suit application requirements.
The HI-6139 communicates with the host via a 40 MHz 4-wire serial peripheral interface (SPI). Programmable interrupts provide terminal status to the host processor. Circular data buffers in RAM have interrupts for rollover and programmable “level attained”.
The HI-6139 can be configured for automatic self-initialization after reset. A dedicated SPI port reads data from an external serial EEPROM to fully configure registers and RAM and optionally start execution for any subset of one to three terminal devices.
A reference design, ADK-6139 and reference software is also available. The 2-board assembly and C project software provides a ready-to-run evaluation platform demonstrating concurrent operation for any combination of Bus Controller, Bus Monitor and Remote Terminal. For convenience, the kit includes IAR Systems Embedded Workbench® for ARM, and a fully integrated debug interface for the ARM Cortex M3 microcontroller.
Features
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MIL-STD-1553A/B/C and MIL-STD-1760 compliant
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Complies with SAE AS15531A and STANAG 3838
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Concurrent multi-terminal operation for one to three MIL-STD-1553B functions: BC, MT and/or RT
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Optional MIL-STD-1553A operation
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Third Party RT Validated
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8K x 17-bit words internal static RAM with parity
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Autonomous terminal operation requires minimal host intervention
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40 MHz SPI Host Interface
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MIL-STD-1760 option sets Busy bit in Status Word response during initialization
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World’s smallest MIL-STD-1553 terminal, QFN package measures just 6mm x 6mm
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Fully programmable Bus Controller with 28 op code instruction set
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Simple Monitor Terminal (SMT) Mode records commands and data separately, with 16-bit or 48-bit time tagging
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Independent 16-bit time tag counters and clock sources for all modes. The Bus Controller and Monitor also have 32- and 48-bit time count options, respectively
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64-Word Interrupt Log Buffer queues the most recent 32 interrupts. Hardware-assisted interrupt decoding quickly identifies interrupt sources
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Built-in self-test for protocol logic, digital signal paths and internal RAM
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Optional self-initialization at reset uses external serial EEPROM
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±8kV ESD Protection (HBM, all pins)
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Two temperature ranges: -40°C to +85°C, or -55°C to +125°C with optional burn-in
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RoHS compliant and Tin / Lead options available
Software
- Low Level Example Software.
- Bare Metal Drivers.
Applications