Skip to content

DESY MMC v1.00 (Legacy)

MicroTCA.4 legacy DMMC Kit AMC and μRTM

Legacy DMMC AMC & µRTM Picture

The DESY MMC (MicroTCA Management Controller) is a crucial component in MicroTCA (Micro Telecommunications Computing Architecture) systems, designed to manage and monitor various modules within the system. The MMC is built around an ATxmega128 microcontroller, which handles field-replaceable unit (FRU) information storage in its EEPROM. A CPLD (Complex Programmable Logic Device) manages JTAG and SPI switching, ensuring efficient communication between components. The system includes four temperature sensors for thermal monitoring, a UART over USB interface for debugging, and a RTM (Rear Transition Module) Hot-Plug controller with current measurement capabilities. Power management is handled by a PMBus-controlled DC/DC converter, while a socket for an FPGA module provides Gigabit Ethernet and PCIe connectivity. Redundant SPI PROMs (256 Mbit each) ensure data reliability, and a Zone3 connector facilitates system integration. A unique ID chip and a front panel with LEDs enhance monitoring and identification. The μRTM (microRTM) offers basic functionality with EEPROM, temperature sensors, a unique ID chip, a GPIO expander for hot-swap and LED control, and a Zone3 connector. Optional advanced features include an ATxmega128 microcontroller, UART over USB, PMBus-controlled DC/DC converters, and an FPGA module socket with Gigabit Ethernet and platform flash. The DESY MMC is versatile, managing MicroTCA, standard AMC, and μRTM modules, making it essential for high-performance computing and telecommunications applications.

Legacy DMMC AMC & µRTM Picture

Building Blocks: AMC

  • ATxmega128 microcontroller with EEPROM for the FRU information
  • CPLD (JTAG and SPI switching)
  • 4x Temperature sensors
  • UART over USB for debugging
  • RTM Hot-Plug controller including current measurement
  • PMBusTM controlled DC/DC converter
  • Socket for FPGA module with following features: Gigabit Ethernet and PCIe connectivity
  • Redundant SPI PROMs (2x 256 Mbit)
  • Zone3 connector
  • Unique ID-Chip
  • Front panel with various LEDs for monitoring

Building Blocks: RTM

μRTM (basic functionality):

  • EEPROM for the FRU information
  • 4x Temperature sensors
  • Unique ID-Chip
  • GPIO Expander (Hot swap handle and LED control)
  • Zone3 connector
  • Front panel with various LEDs for monitoring

μRTM (optional advanced functionality):

  • ATxmega128 microcontroller
  • UART over USB for debugging
  • PMBusTM controlled DC/DC converters
  • Socket for FPGA module with following features:
  • Gigabit Ethernet
  • Platform Flash (32 Mbit)

Applications

  • Management of MicroTCA modules
  • Management of standard AMC modules
  • Management of μRTM modules

Licensing

The MMC V1.00, now mature, has been replaced by DMMC-STAMP and DMMC-STAMP SDK.