The updated SMARC module specification Rev 2.1 was released March 23, 2020. It’s fully backward compatible to Rev. 2.0 and introduces some new functions.

Changes from Rev. 2.0 to 2.1:

  • Incorporated Errata 1.1 Rev. 2 (2/9/2017)
  • Updated signal tables
    • Added pin number
    • Added power domain
    • Updated content
    • Added termination information
  • Added details for eDP[0:1]_HPD
  • Added SERDES as alternative function for PCIeC and PCIeD
  • Added MDIO Interface
  • Updated power domains and power sequencing
  • Added two extra GPIOs
  • PCIe Clock Request signals for PCIeA and PCIeB at previous locations
  • Changed fill order for MIPI CSI (CSI1 first, then CSI0)
  • Added CSI 2 and 3 on extra optional connector
  • USB client mode defined more clearly
  • Added sleep power domain
  • Redefined JTAG connector