LM3S1651 Datasheet, PDF (776/1033 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Inter-Integrated Circuit Sound (I²S) Interface
Register 6: I²S Transmit FIFO Level (I2STXLEV), offset 0x018
The number of samples in the transmit FIFO can be read using the I2STXLEV register. The value
ranges from 0 to 16. Stereo and Compact Stereo sample-pairs are counted as two. Mono samples
also increment the count by two. For example, the LEVEL field is set to eight if there are four Mono
samples.
I2S Transmit FIFO Level (I2STXLEV)
Base 0x4005.4000
Offset 0x018
Type RO, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
reserved
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
reserved
LEVEL
Type RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:5
4:0
Name
reserved
LEVEL
Type
RO
RO
Reset Description
0x0000.00 Software should not rely on the value of a reserved bit. To provide
compatibility with future products, the value of a reserved bit should be
preserved across a read-modify-write operation.
0x00
Number of Audio Samples
This field contains the number of samples in the FIFO.
776
January 21, 2012
Texas Instruments-Production Data