LM3S1621 Datasheet, PDF (642/947 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Analog-to-Digital Converter (ADC)
Register 15: ADC Sample Sequence Control 0 (ADCSSCTL0), offset 0x044
This register contains the configuration information for each sample for a sequence executed with
a sample sequencer. When configuring a sample sequence, the END bit must be set for the final
sample, whether it be after the first sample, eighth sample, or any sample in between. This register
is 32 bits wide and contains information for eight possible samples.
ADC Sample Sequence Control 0 (ADCSSCTL0)
ADC0 base: 0x4003.8000
Offset 0x044
Type R/W, reset 0x0000.0000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TS7
IE7
END7
D7
TS6
IE6
END6
D6
TS5
IE5
END5
D5
TS4
IE4
END4
D4
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
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
TS3
IE3
END3
D3
TS2
IE2
END2
D2
TS1
IE1
END1
D1
TS0
IE0
END0
D0
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
Name
TS7
Type
R/W
Reset
0
Description
8th Sample Temp Sensor Select
Value Description
1 The temperature sensor is read during the eighth sample of the
sample sequence.
0 The input pin specified by the ADCSSMUXn register is read
during the eighth sample of the sample sequence.
30
IE7
R/W
0
8th Sample Interrupt Enable
Value Description
1 The raw interrupt signal (INR0 bit) is asserted at the end of the
eighth sample's conversion. If the MASK0 bit in the ADCIM
register is set, the interrupt is promoted to the interrupt controller.
0 The raw interrupt is not asserted to the interrupt controller.
It is legal to have multiple samples within a sequence generate interrupts.
29
END7
R/W
0
8th Sample is End of Sequence
Value Description
1 The eighth sample is the last sample of the sequence.
0 Another sample in the sequence is the final sample.
It is possible to end the sequence on any sample position. Software
must set an ENDn bit somewhere within the sequence. Samples defined
after the sample containing a set ENDn bit are not requested for
conversion even though the fields may be non-zero.
642
January 21, 2012
Texas Instruments-Production Data