3.3 Warnings About Specific controlCARD Revisions
For more information, see Section 3.2.
MCU063E1
- The E1 version of the controlCARD contains an error. These controlCARDs have had two cut traces and a blue wire soldered between U17 and R111 to correct this issue.
- Fix: None, functionality is identical to later versions of the controlCARD.
- U20 is a non-inverting buffer. D7 and D8 will be inverted when driven by the ECAT module
- Fix: You must drive D7 and D8 using the GPIO function. Later versions of the controlCARD use an inverting buffer.
- R44 is populated by default.
- Fix: None, you can choose to depopulate R44.
- A 56 Ω resistor is missing from this design, which can effect long-term system reliability.
- A single 56 Ω resistor (10% or better tolerance) should be placed between VDD and VSS in all end systems. This resistor provides a load to consume an internal VDD3VFL to VDD current source and avoid VDD voltage rising during low power device conditions.
MCU063E2
- A 56 Ω resistor is missing from this design, which can effect long-term reliability.
- A single 56 Ω resistor (10% or better tolerance) should be placed between VDD and VSS in all end systems. This resistor provides a load to consume an internal VDD3VFL to VDD current source and avoid VDD voltage rising during low power device conditions.
MCU063A
- A 56 Ω resistor is missing from this design, which can effect long-term reliability.
- A single 56 Ω resistor (10% or better tolerance) should be placed between VDD and VSS in all end systems. This resistor provides a load to consume an internal VDD3VFL to VDD current source and avoid VDD voltage rising during low power device conditions.
MCU063B
- Defaults to a 25 MHz clock input. For more information, see Section 3.2.