LM3S1G21 Datasheet, PDF (711/955 Pages) Texas Instruments – Stellaris® LM3S1G21 Microcontroller

Stellaris^® LM3S1G21 Microcontroller
Bit/Field
2:0
Name
TXIFLSEL
Type
R/W
Reset
0x2
Description
UART Transmit Interrupt FIFO Level Select
The trigger points for the transmit interrupt are as follows:
Value Description
0x0 TX FIFO ≤ ⅞ empty
0x1 TX FIFO ≤ ¾ empty
0x2 TX FIFO ≤ ½ empty (default)
0x3 TX FIFO ≤ ¼ empty
0x4 TX FIFO ≤ ⅛ empty
0x5-0x7 Reserved
Note:
If the EOT bit in UARTCTL is set (see page 706), the transmit
interrupt is generated once the FIFO is completely empty and
all data including stop bits have left the transmit serializer. In
this case, the setting of TXIFLSEL is ignored.
January 22, 2012
711
Texas Instruments-Production Data