3.3 Digital
3. MSC Interfacing
The timing of each port should be considered for full compatibility.
3.3.1. USART
3.3.1. USART
USART has both a synchronous and asynchronous mode. The MCU checks the XCL pin state for approximately 100ms after power up or reset. If it changes state for more than 2 microseconds within that time, then it will be set to synchronous mode.
3.3.1.1. USART Timing Diagram
3.3.1.1. USART Timing Diagram
This will be included in a future version of this document.
3.3.2. SPI
3.3.2. SPI
This will be included in a future version of this document.
3.3.2.1. SPI Timing Diagram
3.3.2.1. SPI Timing Diagram
This will be included in a future version of this document.
3.3.3. TWI
3.3.3. TWI
This will be included in a future version of this document.
3.3.3.1. TWI Timing Diagram
3.3.3.1. TWI Timing Diagram
This will be included in a future version of this document.