LM3S1439_16 Datasheet, PDF (581/699 Pages) Texas Instruments – Stellaris LM3S1439 Microcontroller

Stellaris^® LM3S1439 Microcontroller
Register 19: PWM0 Interrupt Status and Clear (PWM0ISC), offset 0x04C
Register 20: PWM1 Interrupt Status and Clear (PWM1ISC), offset 0x08C
Register 21: PWM2 Interrupt Status and Clear (PWM2ISC), offset 0x0CC
These registers provide the current set of interrupt sources that are asserted to the controller
(PWM0ISC controls the PWM generator 0 block, and so on). Bits set to 1 indicate the latched events
that have occurred; bits set to 0 indicate that the event in question has not occurred. These are
R/W1C registers; writing a 1 to a bit position clears the corresponding interrupt reason.
PWM0 Interrupt Status and Clear (PWM0ISC)
Base 0x4002.8000
Offset 0x04C
Type R/W1C, reset 0x0000.0000
31
30
29
28
27
26
25
Type RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
15
14
13
12
11
10
9
reserved
Type RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
24
23
reserved
RO
RO
0
0
8
7
RO
RO
0
0
22
21
20
19
18
17
16
RO
RO
RO
RO
RO
RO
RO
0
0
0
0
0
0
0
6
5
4
3
2
1
0
IntCmpBD IntCmpBU IntCmpAD IntCmpAU IntCntLoad IntCntZero
RO R/W1C R/W1C R/W1C R/W1C R/W1C R/W1C
0
0
0
0
0
0
0
Bit/Field
31:6
5
4
3
2
1
0
Name
reserved
IntCmpBD
IntCmpBU
IntCmpAD
IntCmpAU
IntCntLoad
IntCntZero
Type
RO
R/W1C
R/W1C
R/W1C
R/W1C
R/W1C
R/W1C
Reset
0x00
0
0
0
0
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.
Comparator B Down Interrupt
Indicates that the counter has matched the comparator B value while
counting down.
Comparator B Up Interrupt
Indicates that the counter has matched the comparator B value while
counting up.
Comparator A Down Interrupt
Indicates that the counter has matched the comparator A value while
counting down.
Comparator A Up Interrupt
Indicates that the counter has matched the comparator A value while
counting up.
Counter=Load Interrupt
Indicates that the counter has matched the PWMnLOAD register.
Counter=0 Interrupt
Indicates that the counter has matched 0.
July 15, 2014
581
Texas Instruments-Production Data