IO-Link

IO-Link Device Controller Features

• 4 devices in the family
• 13 Dhrystone MIPS CPU
• 20 MHz internal or external oscillator
• Wide operating voltage: 3.0 Vdc to 5.5 Vdc
• From 32 KBytes to 128 Kbytes Flash
• From 4 KBytes RAM to 7 KBytes RAM
• Up to 6 channel 10-bit A/D converter
• 6 channel PWM timer
• Up to 12 channel 16-bit timers
• Self programming with boot swap function
• On-chip debug function
• On-chip (POC) Power On Clear
• On-chip (WDT) Watchdog Timer
• On-chip programmable (LVI) Low Voltage Detection Interrupt
• Hardware 16-bit x 16-bit multiplier (1 cycle)
• Hardware 32-bit/32-bit divide
• Serial interfaces unit (UART LIN-Bus, CSI, I2C)
• DMA controller channel x 2
• EEPROM emulation
• 26 user I/Os
• 56-pin 8 x 8 mm QFN package

 

IO-Link specific features

• Supply voltage range 8 – 36 V
• Integrated 5 V voltage regulator
• Baud rate selection up to 230 kbit/s
• Supports COM1, COM2, and COM3
• Wake-up detection
• Load current monitor
• Overcurrent protection
• Overtemperature protection
• Driver capability up to 200 mA
• C/Q reverse polarity protection
• Capability to drive inductive loads
• User selectable overcurrent shut-off threshold

 

Operating Conditions

• Supply voltage at pin Vddh:
  (normally)
  Min: 8 V Typ: 24 V
  Max: 36 V
  (for IO-Link communication)
  Min: 18 V
  Typ: 24 V
  Max: 30 V

• Operating temperature range:
  -40 oC to +85 oC

 

Mechanical Features

• QFN (Quad Flat Pack - No Leads) package
• 56-pins
• 8mm x 8mm package size

IO-Link Device Stack Features

The IO-Link stack is compliant with version 1.0 of the IO-Link specification and is available as an object code library. The stack is free of charge for development use and is included in the Link-It! development kit. A license fee is required once your product is qualified for mass production. Please contact Renesas Electronics for more information about the licensing terms.

 

Key Features:

• All IO-Link Features according to Specification V1.0 are supported
• Use DMA feature of microcontroller
  • Less interrupt load
• Adapt the stack to the applications requirements
• Clear separation of hardware abstraction and application
• Reach down to memory footprints as little as:
  • Without SPDU
    RAM:  97 Bytes  ROM: 1290 Bytes
  • With SPDU     
    RAM: 351 Bytes ROM: 1549 Bytes
• Preserve real time operation through use of interrupt modes
  • IO-Link stack can run in Interrupt mode
  • Other timing critical operations can run in interrupt mode
  • Only SPDU Handling should be done in normal program mode
• Requires only one timer running in interval mode
  • The Timer can run at speeds from 2 MHz to 20 MHz
• IO-Link stack requires only two dedicated interrupts
  • Receive Interrupt and Timer Interrupt
• Process data is consistently stored in a triple buffer
• Process data is writable at anytime without blocking interrupts
• Configured using one single file

Fast and simple software integration

To integrate the TMG IO-Link slave stack developers are provided with some useful features:

• Board Support Package (BSP)

With the BSP the user can configure the IO-Link interface such as the receiving and transmitting function of the IO-Link UART, the wakeup function, Interrupts and timer settings.

• Application interface

To transport information between the application and the IO-Link stack, simply call the “Process data handling” and “On-Request Data” handling functions.

• Stack Management

Use the stack manager to initialize, start the stack, and regularly call the “Run” function in order to process SPDU requests.

 

 

Using the IO-Link controller in your design

With a versatile range of peripherals Renesas Electronics IO-Link controllers are the components of choice for sensor and actuator applications. The 13 Dhrystone MIPS delivered by the 78K0R CPU makes them a perfect fit for many different types of application, either used as primary or secondary controllers.
A large amount of Flash memory is available with the family allowing developers to integrate both IO-Link communications and their application onto a single device. This saves both cost and complexity for medium sized sensors.

Replace an existing microcontroller with the Renesas IO-Link controller

Developers can use the on-chip 10-bit analogue to digital converter for signal conditioning or for direct connection to analogue sensors. A number of dedicated PWMs are also available, particularly useful for actuator designs.

Add the Renesas IO-Link controller to an existing design

Add value to existing analogue sensor designs by including IO-Link connectivity. The single chip concept enables fast and easy integration of new functionality that can provide great differentiation at low investment costs.

Connect directly to a sensor ASIC for new sensor designs

Many advanced applications include dedicated custom ASIC based sensor devices. A number of serial interfaces are available on the IO-Link controller to make integration simple. Because the family of IO-Link controllers has abundant Flash memory and CPU performance developers can also add new features through additional software.

 

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