The DPC31 protocol ASIC mainly consists of a PROFIBUS controller with more RAM than a SPC3 and additionally an integrated 8031 core. The big advantage is saving in hardware costs since a controller is already integrated.
DPC31 – PROFIBUS DP/PA Protocol ASIC
Description
TECHNICAL SPECIFICATIONS
Hardware & Software Specifications
- Package: 100 pin PQFP
- Temperature range: -40..+85 °C
- Supply Voltage: 3.3 Volt
- Supported uP families: Siemens, Intel, Motorola
- External uP interface: Parallel 8 bits
- Dual port RAM buffer size: 5.5 kByte
- Oscillator/crystal frequency: 12 MHz (DP), 4 MHz (Typical for PA)
- I/O:
- – SSC interface (SPI)
- – 27 I/O points (only if the integrated 8031 is used)
- Other: Integrated 8031 with additional 3rd timer
PROFIBUS Specifications
- Supported protocols: DP, DP-V1, DP-V2, PA
- Integration depth: Fully integrated slave
- Transmission speeds: Max. 12 Mbps (RS 485), 31.25 kbps (MBP)
- Total product implementation:
- – ASIC + processor
- – Single chip (integrated 8031 with software implementation)