LM3S2965-IQC20-A0T Luminary Micro, Inc., LM3S2965-IQC20-A0T Datasheet - Page 505

• Manufacturer Part Number: LM3S2965-IQC20-A0T
• Description: Microcontroller
• Manufacturer: Luminary Micro, Inc.

QEI Interrupt Status and Clear (QEIISC)
QEI0 base: 0x4002.C000
QEI1 base: 0x4002.D000
Offset 0x028
Type R/W1C, reset 0x0000.0000
June 04, 2007
Reset
Reset
Type
Type
Bit/Field
31:4
3
2
1
0
RO
RO
31
15
0
0
Register 11: QEI Interrupt Status and Clear (QEIISC), offset 0x028
This register provides the current set of interrupt sources that are asserted to the controller. Bits set
to 1 indicate the latched events that have occurred; a zero bit indicates that the event in question
has not occurred. This is a R/W1C register; writing a 1 to a bit position clears the corresponding
interrupt reason.
RO
RO
30
14
0
0
reserved
IntTimer
IntIndex
IntError
Name
IntDir
RO
RO
29
13
0
0
RO
RO
28
12
0
0
R/W1C
R/W1C
R/W1C
R/W1C
RO
RO
Type
27
11
0
0
RO
RO
RO
26
10
0
0
reserved
Reset
0
0
0
0
0
RO
RO
25
0
9
0
Preliminary
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.
Indicates that a phase error was detected.
Indicates that the direction has changed.
Indicates that the velocity timer has expired.
Indicates that the index pulse has occurred.
RO
RO
24
0
8
0
reserved
RO
RO
23
0
7
0
RO
RO
22
0
6
0
RO
RO
21
0
5
0
RO
RO
20
0
4
0
LM3S2965 Microcontroller
IntError
R/W1C
RO
19
0
3
0
R/W1C
IntDir
RO
18
0
2
0
IntTimer
R/W1C
RO
17
0
1
0
IntIndex
R/W1C
RO
16
0
0
0
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