MachXO System Control Designs

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Temperature measurement, current monitoring, power supply sequencing, fan control and power supply fault logging are typical board control functions used in complex circuit designs. System designers are faced with continual pressure to meet their development schedules, and need to implement control functions with minimal effort and risk while maintaining maximum flexibility. By using PLDs for their deisgns, designers can accelerate their time-to-market, address system cost and space reduction and ensure a high level of product differentiation.

The MachXO Control Development Kit and free downloadable reference designs provide designers a comprehensive platform for rapidly prototyping these functions.

System Control Designs
Application	MachXO PLD Function
Thermal management	Ensure PCB temperature is maintained
Power supply sequencing and reset distribution	Monitor multiple power supply voltage and current levels Distribute reset signals Sequence power supplies
Voltage monitoring	Monitor sensors and power rails of a system Replace discrete ADCs using Delta Sigma ADC
Power supply fault logging	Monitor and keep a log of power supply failures Maximize system reliability by monitoring devices for marginal power supply failures
Fault isolation on long JTAG chains	Partition complex JTAG chains using BSCAN Detect and isolate faults efficiently and cost effectively
Interface to Compact Flash memory	Provide simple plug-in memory

The examples below illustrate how MachXO PLDs are being used in system control designs.

Thermal Management Using Fan Control	Fault Isolation Using BSCAN Linker

Power Supply Fault Logging	Voltage Monitoring Using Delta Sigma ADC

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Learn more about the MachXO Control Development Kit
Download reference designs
Download white paper: MachXO PLDs in System Control Designs
Application note: AN8082 USB Programming and Circuit Guide 01.0
Application note: AN8083 Linking or Selecting Ports with BSCAN2 01.0