Texas Instruments SimpleLink CC2620 Technical Reference Manual page 1359

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19.7.1.9 IFLS Register (Offset = 34h) [reset = 12h]
IFLS is shown in Figure 19-12
Interrupt FIFO Level Select
31 30 29 28
15 14 13 12
Bit Field
31-6 RESERVED
5-3 RXSEL
2-0 TXSEL
SWCU117C – February 2015 – Revised September 2015
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and described in Table
Figure 19-12. IFLS Register
27 26 25 24
RESERVED
R/W-0h
11 10 9 8
RESERVED
R/W-0h
Table 19-12. IFLS Register Field Descriptions
Type Reset
R/W 0h
R/W 2h
R/W 2h
Copyright © 2015, Texas Instruments Incorporated
19-12.
23 22 21 20
7 6 5 4
RXSEL
R/W-2h
Description
Software must not rely on the value of a reserved. Writing any other
value than the reset value may result in undefined behavior.
Receive interrupt FIFO level select:
This field sets the trigger points 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
Transmit interrupt FIFO level select:
This field sets the trigger points 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
Universal Asynchronous Receivers and Transmitters (UARTS)
UARTS Registers
19 18 17 16
3 2 1 0
TXSEL
R/W-2h
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