Texas Instruments CC2650DK 사용자 설명서
UARTS Registers
19.7.1.9 IFLS Register (Offset = 34h) [reset = X]
IFLS is shown in
and described in
.
Interrupt FIFO Level Select
Figure 19-12. IFLS Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESERVED
R/W-X
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
RESERVED
RXSEL
TXSEL
R/W-X
R/W-2h
R/W-2h
Table 19-12. IFLS Register Field Descriptions
Bit
Field
Type
Reset
Description
31-6
RESERVED
R/W
X
Software should not rely on the value of a reserved. Writing any
other value than the reset value may result in undefined behavior.
other value than the reset value may result in undefined behavior.
5-3
RXSEL
R/W
2h
Receive interrupt FIFO level select: This field sets the trigger points
for the receive interrupt. Values 0b101-0b111 are reserved.
for the receive interrupt. Values 0b101-0b111 are reserved.
0h = 1_8 : Receive FIFO becomes >= 1/8 full
1h = 2_8 : Receive FIFO becomes >= 1/4 full
2h = 4_8 : Receive FIFO becomes >= 1/2 full
3h = 6_8 : Receive FIFO becomes >= 3/4 full
4h = 7_8 : Receive FIFO becomes >= 7/8 full
2-0
TXSEL
R/W
2h
Transmit interrupt FIFO level select: This field sets the trigger points
for the transmit interrupt. Values 0b101-0b111 are reserved.
for the transmit interrupt. Values 0b101-0b111 are reserved.
0h = 1_8 : Transmit FIFO becomes <= 1/8 full
1h = 2_8 : Transmit FIFO becomes <= 1/4 full
2h = 4_8 : Transmit FIFO becomes <= 1/2 full
3h = 6_8 : Transmit FIFO becomes <= 3/4 full
4h = 7_8 : Transmit FIFO becomes <= 7/8 full
1345
SWCU117A – February 2015 – Revised March 2015
Universal Asynchronous Receivers and Transmitters (UARTS)
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