7.4. Data Transmission and Reception in AHB UART

Try these first

1. 1.

   What does the CPU do at the start of data transmission?

   Hint

   Think about the first step in the transmission process.

2. 2.

   What is the purpose of the Transmit FIFO buffer?

   Hint

   Consider why we need a buffer in the communication process.

3. 3.

   What is the role of the Data Register in UART communication?

   • To receive data
   • To write data for transmission
   • To control interrupts

   Hint

   Recall where the CPU sends data before it is transmitted.

4. 4.

   True or false: Data is received directly into the Data Register.

   • True
   • False

   Hint

   Think about the steps involved in receiving data.

5. 5.

   Design a system where the CPU sends data to a device at two different baud rates. Discuss potential issues that might arise during transmission and how to mitigate them.

   Hint

   Consider what happens when devices cannot communicate at the same speed.

6. 6.

   Evaluate the advantages and disadvantages of using FIFO buffers in UART communication. Provide scenarios where an advantage is utilized.

   Hint

   Reflect on situations requiring fast data handling.