Interrupt Mode - 2.1 English

The following portrays the steps of setting up Interrupt Mode:

1. Ensure EXT_PKT_RXD/INFO_PKT_RXD interrupt is enabled by setting the correct mask.
2. Wait for interrupt, Read interrupt cause register to check if EXT_PKT_RXD or INFO_PKT_RXD is set.
3. Based on interrupt status, read packet from appropriate buffer immediately.