SMART Embedded Computing MC1600, Installation And Use Manual

Page: 59 / 126

System Overview
MC1600 Extreme Edge Server Installation and Use (6806870A02B) 59
1.7.6 SMBus and I
2
C Interface
The Broadwell-DE integrates a SMBus 2.0 controller that provides an interface to manage
peripherals such as the Serial Presence Detection (SPD) on the RAM, thermal sensors,
PCI cards, etc. There are four SMBus ports on the SoC. The slave interface allows an
external microcontroller to access system resources. The diagram below shows the SMBus
architecture of each CPU.
Figure 1-6 CPU SMBus Architecture