Table of Contents
Advertisement
2.1.12 Temperature Sensor
• Monitors core temperatures of critical components such as the CPU
• Monitors ambient temperature
• Connected via SMBus
2.1.13 BMM
The SBC622 is equipped with a Board Management Micro‐controller (BMM) with
the following capabilities.
• Connected to COM4
• Powered from P3V3_AUX supply allowing for operation when SBC main
power is off
• Connected via SMBus
• Connected to VPX geographic address
• Firmware to support BMM functionality may be optionally provided
2.1.14 ETI
The SBC622 provides elapsed‐time recorder via the Maxim DS1682 offering a
32‐bit, nonvolatile, elapsed time counter (ETC) with quarter‐second resolution
and provides thirty‐four years of total time accumulation.
2.1.15 Trusted Platform module (TPM)
The SBC622 provides trusted platform support via the Atmel AT97SC3204 TPM
offering:
• Hardware asymmetric crypto engine
• 2048‐bit RSA sign
• EEPROM storage for RSA keys
• NV storage for 1280 bytes of user data
The TPM includes a cryptographic accelerator capable of computing a 2048‐bit
RSA signature in 200 ms and a 1024‐bit RSA signature in 40 ms. Performance of
the SHA‐1 accelerator is 20 μs per 64‐byte block.
The TPM includes a hardware random number generator, including a FIPS‐
approved Pseudo Random Number Generator that is used for key generation and
TCG protocol functions. The RNG is also available to the system to generate
random numbers that may be needed during normal operation.
Standard Features 43
Advertisement
Table of Contents
