LM3S1538 Luminary Micro, Inc, LM3S1538 Datasheet - Page 425

• Manufacturer Part Number: LM3S1538
• Description: Lm3s1538 Arm Microcontroller
• Manufacturer: Luminary Micro, Inc

Reset
Reset
Type
Type
QEI Interrupt Enable (QEIINTEN)
QEI0 base: 0x4002.C000
Offset 0x020
Type R/W, reset 0x0000.0000
July 26, 2008
Bit/Field
31:4
3
2
1
0
RO
RO
31
15
0
0
Register 9: QEI Interrupt Enable (QEIINTEN), offset 0x020
This register contains enables for each of the QEI module’s interrupts. An interrupt is asserted to
the controller if its corresponding bit in this register is set to 1.
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
R/W
R/W
R/W
R/W
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 Interrupt Enable
When 1, an interrupt occurs when a phase error is detected.
Direction Change Interrupt Enable
When 1, an interrupt occurs when the direction changes.
Timer Expires Interrupt Enable
When 1, an interrupt occurs when the velocity timer expires.
Index Pulse Detected Interrupt Enable
When 1, an interrupt occurs when the index pulse is detected.
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
LM3S1538 Microcontroller
R/W
RO
19
0
3
0
IntDir
R/W
RO
18
0
2
0
IntTimer
R/W
RO
17
0
1
0
IntIndex
R/W
RO
16
0
0
0
425