LM3S5G51 Datasheet, PDF (605/1266 Pages) Texas Instruments – Stellaris® LM3S5G51 Microcontroller

Stellaris^® LM3S5G51 Microcontroller
Register 20: ADC Sample Sequence FIFO 0 Status (ADCSSFSTAT0), offset
0x04C
Register 21: ADC Sample Sequence FIFO 1 Status (ADCSSFSTAT1), offset
0x06C
Register 22: ADC Sample Sequence FIFO 2 Status (ADCSSFSTAT2), offset
0x08C
Register 23: ADC Sample Sequence FIFO 3 Status (ADCSSFSTAT3), offset
0x0AC
This register provides a window into the sample sequencer, providing full/empty status information
as well as the positions of the head and tail pointers. The reset value of 0x100 indicates an empty
FIFO with the head and tail pointers both pointing to index 0. The ADCSSFSTAT0 register provides
status on FIFO0, which has 8 entries; ADCSSFSTAT1 on FIFO1, which has 4 entries;
ADCSSFSTAT2 on FIFO2, which has 4 entries; and ADCSSFSTAT3 on FIFO3 which has a single
entry.
ADC Sample Sequence FIFO 0 Status (ADCSSFSTAT0)
ADC0 base: 0x4003.8000
ADC1 base: 0x4003.9000
Offset 0x04C
Type RO, reset 0x0000.0100
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
FULL
reserved
EMPTY
HPTR
TPTR
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
1
0
0
0
0
0
0
0
0
Bit/Field
31:13
12
Name
reserved
FULL
Type
RO
RO
Reset Description
0x0000.0
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.
0
FIFO Full
Value Description
1 The FIFO is currently full.
0 The FIFO is not currently full.
11:9
reserved
RO
0x0
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.
8
EMPTY
RO
1
FIFO Empty
Value Description
1 The FIFO is currently empty.
0 The FIFO is not currently empty.
January 23, 2012
605
Texas Instruments-Production Data