What do the following codes do? UART1-IFLS &= ~((0x07

Question

What do the following codes do?

UART1->IFLS &= ~((0x07<<3) | (0x07<<0)); // reset bits through mask

UART1->IFLS |= (0x01<<3) | (0x03<<0);

The following are the bit definitions forthe Interrupt FIFO Level Select (IFLS) register:

Answer

b.  Trigger RX FIFO at 1/2 full & TX FIFO at 1/2 empty

Answer

d.  Trigger RX FIFO at 3/4 full & TX FIFO at 3/4 empty

Answer

c.  Trigger RX FIFO at 7/8 full & TX FIFO at 7/8 empty

Answer

a.  Trigger RX FIFO at 1/4 full & TX FIFO at 1/4 empty

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