LM3S1958 Datasheet, PDF (257/435 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S1958 Microcontroller
Register 6: ADC Event Multiplexer Select (ADCEMUX), offset 0x014
The ADCEMUX selects the event (trigger) that initiates sampling for each Sample Sequencer. Each
Sample Sequencer can be configured with a unique trigger source.
ADC Event Multiplexer Select (ADCEMUX)
Base 0x4003.8000
Offset 0x014
Type R/W, 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
EM3
EM2
EM1
EM0
Type R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit/Field
31:16
15:12
Name
reserved
EM3
Type
RO
R/W
Reset
0
0
Description
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.
This field selects the trigger source for Sample Sequencer 3.
The valid configurations for this field are:
EM Binary Value Event
0000
Controller (default)
0001
Reserved
0010
Reserved
0011
Reserved
0100
External (GPIO PB4)
0101
Timer
0110
Reserved
0111
Reserved
1000
Reserved
1001-1110
reserved
1111
Always (continuously sample)
11:8
EM2
R/W
0
This field selects the trigger source for Sample Sequencer 2. The
encodings are the same as those for EM3.
7:4
EM1
R/W
0
This field selects the trigger source for Sample Sequencer 1. The
encodings are the same as those for EM3.
3:0
EM0
R/W
0
This field selects the trigger source for Sample Sequencer 0. The
encodings are the same as those for EM3.
June 14, 2007
257
Luminary Micro Confidential-Advance Product Information