ADI Engineering | a Division of Silicom


pfSense Based BMC Module

  • Open-Source, Low-cost, RESTful BMC based on pfSense security gateway software
  • Targeted at NFV edge appliances
  • TI ARM Cortex-A8 module
  • Security and extensibility of pfSense are foundational to MicroBMC
  • Alpha sampling now, Production and open collateral posting Q1 2017
  • Development Kit available
silicom microbmc
silicom micro bmc


pfSense Based BMC Module

General Technical Specifications

Form Factor: 27mm x 54mm Module

TI AM3352 ARM Cortex-A8, including crypto accelerator, 300 or 600 MHz (The following specs are for ADI’s TI A8 based MicroBMC module)

Intel Quark X1000 module under development (implementation-dependent specs may vary from the following)

DRAM: 256 or 512MB DDR3, memory down

Integrated on-board 3-port managed GbE switch

Two external 1GbE switch ports on module connector for external management port and connection to main system CPU

Flash: eMMC on-board, 4GB (custom build options support up to 64GB)
Voltage Monitoring:

8x motherboard power supply voltage monitoring analog inputs

Expandable with optional analog MUX on motherboard

Fan Control: 2x independent PWM output / tachometer inputs fan channels
PSU Monitoring: 4x PSU powergood inputs
GPIO: 8x user-defined digital I/O pins
RTC: Yes, for timestamp of FRU EEPROM event log entries
Virtual Media: USB device connection to host CPU for USB boot over LAN
CPU Status Monitoring: Sleep S3, S4, S5 indicators

PROCHOT#, THERMTRIP# thermal indicators
CPU error indicators
Platform reset

CPU Power State Control:

Reset button control

Power button control

Heartbeat Monitoring: Software GPIO on host CPU drives watchdog input on µBMC

Bus 0 (master). Onboard FRU EEPROM, connectivity for motherboard discrete thermal sensors and other devices

Bus 1 (master). Access to PECI SMBus slave inside host CPU. Used for monitoring CPU die temperature.

SPI: Used to access host CPU boot flash for remote BIOS updates
EEPROM: 32kB I2C EEPROM on board, for management event logging
Power: 3.3VDC and 5VDC
Temperature: Operating: 0-70C
Storage: -20-85C