LM3S6950 Luminary Micro, Inc, LM3S6950 Datasheet - Page 491

• Manufacturer Part Number: LM3S6950
• Description: Lm3s6950 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Reset
Reset
Type
Type
QEI Raw Interrupt Status (QEIRIS)
QEI0 base: 0x4002.C000
Offset 0x024
Type RO, reset 0x0000.0000
July 25, 2008
Bit/Field
31:4
3
2
1
0
RO
RO
31
15
0
0
Register 10: QEI Raw Interrupt Status (QEIRIS), offset 0x024
This register provides the current set of interrupt sources that are asserted, regardless of whether
they cause an interrupt to be asserted to the controller (this is set through the QEIINTEN register).
Bits set to 1 indicate the latched events that have occurred; a zero bit indicates that the event in
question has not occurred.
RO
RO
30
14
0
0
reserved
RO
RO
IntTimer
IntIndex
29
13
IntError
0
0
Name
IntDir
RO
RO
28
12
0
0
RO
RO
27
11
0
0
Type
RO
RO
RO
RO
RO
RO
RO
26
10
0
0
reserved
Reset
0x00
RO
RO
25
0
9
0
0
0
0
0
Preliminary
RO
RO
24
0
8
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.
Phase Error Detected
Indicates that a phase error was detected.
Direction Change Detected
Indicates that the direction has changed.
Velocity Timer Expired
Indicates that the velocity timer has expired.
Index Pulse Asserted
Indicates that the index pulse has occurred.
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
IntError
LM3S6950 Microcontroller
RO
RO
19
0
3
0
IntDir
RO
RO
18
0
2
0
IntTimer
RO
RO
17
0
1
0
IntIndex
RO
RO
16
0
0
0
491