Lantronix DSTni-EX - Manual (Page 79)

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Table 5-34. Tx/Rx Message Level Register
BIT 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
OFFSET 44h
FIELD /// RL1 RL0 TL1 TL0
RESET 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
Table 5-35. Tx/Rx Message Level Register Definitions
Bits Field Name Description
15:4 /// Reserved
3:1 RL[1:0] rx_level[1:0]
Sets the rx_msg interrupt threshold:
0 = at least 1 message in receive FIFO
1 = at least 2 messages in receive FIFO.
2 = at least 3 messages in receive FIFO.
3 = at least 4 messages in receive FIFO.
1:0 TL[1:0] tx_level[1:0]
Sets the tx_msg interrupt threshold:
0 = all tx buffers are empty.
1 = minimum 2 empty buffers.
2 = minimum 1 empty buffer.
3 = not applicable.